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Publications 2024
Yungelson, L.; Kuranov, A.; Postnov, K.; Kuranova, M.; Oskinova, L. M.; Hamann, W. -R.: 2024, A&A 683, A37 - arXiv:2401.00802 (14 pages)Elusive hot stripped helium stars in the Galaxy.
I. Evolutionary stellar models in the gap between subdwarfs and Wolf-Rayet stars
Timothy N. Parsons, Raman K. Prinja, Matheus Bernini-Peron,
Alex W. Fullerton, Derck L. Massa, Lidia M. Oskinova, Daniel
Pauli, Andreas A.C. Sander and Matthew J. Rickard: 2024, MNRAS 527,
11422 - arXiv:2401.01240 (36 pages)
Optically-thick structure in early B type supergiant stellar winds at
low metallicities
Mayya, Y.D.; Barway, S.; Gomez-Gonzalez, V.M.A.; Zaragoza-Cardiel:
2024, MNRAS 527, 2816 - arXiv:2311.06583 (16 pages)
Star formation history of the post-collisional Cartwheel galaxy using
Astrosat/UVIT FUV images
Publications 2023
Vink, J.; (...); Oskinova, L.M.; (...); Hamann, W.-R.; (...); Pauli, D.; et al.: 2023, A&A 675, A154 - arXiv:2305.06376 (35 pages)X-Shooting ULLYSES: Massive stars at low metallicity.
I. Project description
Shenar, Tomer; Wade, Gregg A.; Marchant, Pablo; Bagnulo, Stefano;
Bodensteiner, Julia; Bowman, Dominic M.; Gilkis, Avishai; Langer,
Norbert; Nicolas-Chene, Andre; Oskinova, Lidia; Van Reeth, Timothy;
Sana, Hugues; St-Louis, Nicole; de Oliveira, Alexandre Soares; Todt,
Helge; Toonen, Silvia:
2023, Science 381, 761 - arXiv:2308.08591 (5 pages)
A massive helium star with a sufficiently strong magnetic field to form
a magnetar
Shenar, T.; Sana, H.; Crowther, P. A.; Bostroem, K. A.; Mahy, L.;
Najarro, F.; Oskinova, L.; Sander, A. A. C.:
2023, A\&A 679, A36 - arXiv:2309.13113 (27 pages)
Constraints on the multiplicity of the most massive stars known: R136
a1, a2, a3, and c
Matheus Bernini-Peron, Wagner L.F. Marcolino, Andreas A.C. Sander,
Jean-Claude Bouret, Varsha Ramachandran, Julian Saling, Fabian R.N.
Schneider, Lidia M. Oskinova, Francisco Najarro:
2023, A\&A 677, A50 - arXiv:2307.05421 (27 pages)
Clumping and X-Rays in cooler B supergiant stars
Survey
Sidoli, L.; Sguera, V.; Postnov, K.; Esposito, P.; Oskinova, L.;
Mereminskiy, I. A.: 2023, MNRAS 526, 2560 - arXiv:2309.09850 (7 pages)
Probing the nature of the X-ray source IGR J16327-4940 with Chandra
Han, Henggeng; Wang, Song; Bai, Yu; Yang, Huiqin; Fang, Xiangsong; Liu,
Jifeng: 2023, ApJ Suppl. Volume 264, Issue 1,
id.12, p. 17 - arXiv:2210.16830 (20 pages)
Stellar Chromospheric Activities Revealed from the LAMOST-K2 Time-domain
Survey
Mayya, Y.D.; Plat, A.; Gomez-Gonzalez, V.M.A.; Zaragoza-Cardiel, J.;
Charlot, S.; Bruzual, G.: 2023, MNRAS 519, 5492 - arXiv:2301.03073
(24 pages)
Detection of He++ ion in the star-forming ring of the Cartwheel using
MUSE data and ionizing mechanisms
K. Sen, N. Langer, D. Pauli, G. Gräfener, A. Schootemeijer, H. Sana,
T. Shenar, L. Mahy: 2023, A&A 672, A198 - arXiv:2302.04491
(20 pages)
Reverse Algols and hydrogen-rich Wolf-Rayet stars from very massive
binaries
D. Pauli, L. M. Oskinova, W.-R. Hamann, D. M. Bowman, H. Todt,
et. al.: 2023, A&A 673, A40 - arXiv:2303.03989
(21 pages)
Spectroscopic and evolutionary analyses of the binary system AzV 14
outline paths toward the WR stage at low metallicity
Miranda Marques, Bárbara L. ; Monteiro, Hektor ; Aleman, Isabel ;
Akras, Stavros ; Todt, Helge ; Corradi, Romano L. M.:
2023, MNRAS 522, 1049 - arXiv:2306.03201
(22 pages)
Analysis of integral field spectroscopy observations
of the planetary nebula Hen 2-108 and its central star
Lefever, R. R.; Sander, A. A. C.; Shenar, T.; Poniatowski, L. G.;
Dsilva, K.; Todt, H.:
2023, MNRAS 521, 1374 - arXiv:2302.13964
(19 pages)
Exploring the influence of different velocity fields on Wolf-Rayet star
spectra
Hawcroft, C.; (...) Hamann, W.-R., Oskinova, L., Pauli,D.:
2023, A&A (in press) - arXiv:2303.12165
(21 pages)
X-Shooting ULLYSES: Massive stars at low metallicity.
III. Terminal wind
speeds of ULLYSES massive stars
Ramachandran, V.; Klencki, J.; Sander, A. A. C.; Pauli, D.; Shenar, T.;
Oskinova, L. M.; Hamann, W.-R.:
2023, A&A 674, L12 - arXiv:2305.14262
(21 pages)
A partially stripped massive star in a Be binary at low metallicity: A
missing link towards Be X-ray binaries and double neutron star mergers
Publications 2022
Aguilera-Dena, David R.; Langer, Norbert; Antoniadis, John; Pauli, Daniel; Dessart, Luc; Vigna-Gomez, Alejandro; Gräfener, Götz; Yoon, Sung-Chul: 2022, Astron. Astrophys. 661, A60 - arXiv:2112.06948 (20 pages)Stripped-Envelope Stars in Different Metallicity Environments
I. Evolutionary Phases, Classification and Populations
Bozzo, E.; Ferrigno, C.; Oskinova, L.; Ducci, L.:
2022, MNRAS 510, 4645 - arXiv:2112.08517 (9 pages)
Accretion of a clumped wind from a red supergiant donor on to a
magnetar is suggested by the analysis of the XMM-Newton and NuSTAR
observations of the X-ray binary 3A 1954+319
Bozzo, E.; Romano, P.; Ferrigno, C.; Oskinova, L.
2022, MNRAS 513, 42 - arXiv:2203.16347 (13 pages)
The Symbiotic X-ray binaries Sct X-1, 4U 1700+24 and IGR J17329-2731
Geist, E.; Gallagher, J. S.; Kotulla, R.; Oskinova, L.; Hamann, W. -R.;
Ramachandran, V.; Sabbi, E.; Smith, L.; Kniazev, A.; Nota, A.; Rickard,
M. J.:
2022, PASP 134, 1036 - arXiv:2205.05147 (15 pages)
Ionization and Star Formation in the Giant HII Region SMC-N66
Gomez-Gonzalez, V. M. A.; Rubio, G.; Toala, J. A.; Guerrero, M. A.;
Sabin, L.; Todt, H.; Gomez-Llanos, V.; Ramos-Larios, G.; Mayya, Y. D.:
2022, MNRAS 509, 974 - arXiv:2110.09551 (17 pages)
Planetary nebulae with Wolf-Rayet-type central stars - III. A detailed
view of NGC 6905 and its central star
Leto, P., Oskinova, L., et al.:
2022, MNRAS 515, 2269 - arXiv:2207.14075 (9 pages)
Discovery and origin of the radio emission from the multiple stellar
system KQ Vel
Oskinova, Lidia M., Schaerer, Daniel:
2022, Astron. Astrophys. 661, A67 - arXiv:2203.04987 (6 pages)
Ionization of He II in star-forming galaxies by X-rays from cluster
winds and superbubbles
D. Pauli, L. M. Oskinova, W.-R. Hamann, V. Ramachandran, H. Todt, A. A.
C. Sander, T. Shenar, M. Rickard, J. Maiz Apellaniz, R. Prinja:
2022, Astron. Astrophys. 659, A9 - arXiv:2201.09148 (23 pages)
The earliest O-type eclipsing binary in the Small Magellanic Cloud, AzV
476: A comprehensive analysis reveals surprisingly low stellar masses
Pauli, D.; Langer, N.; Aguilera-Dena, D. R.; Wang, C.; Marchant, P.:
2022, Astron. Astrophys. 667, A58 - arXiv:2208.0194 (15+13 pages)
A synthetic population of Wolf-Rayet stars in the LMC based on detailed
single and binary star evolution models
V. Ramachandran, L. M. Oskinova, W.-R. Hamann, A. A. C. Sander, H. Todt,
D. Pauli, T. Shenar, J. M. Torrejón, K. A. Postnov, J. M. Blondin, E.
Bozzo, R. Hainich, D. Massa:
2022, Astron Astrophys., 667, A77 - arXiv:2208.07773 (22 pages)
Phase-resolved spectroscopic analysis of the eclipsing black hole X-ray
binary M33 X-7: System properties, accretion, and evolution
M. J. Rickard, R. Hainich, W.-R. Hamann, L. M. Oskinova, R. K. Prinja,
V. Ramachandran, D. Pauli, H. Todt, A. C. C. Sander, T. Shenar, Y.-H.
Chu, J. S. Gallagher III: 2022, Astron. Astrophys. 666, 189 - arXiv:2207.09333 (33 pages)
Stellar wind properties of the nearly complete sample of O stars in the
low metallicity young star cluster NGC346 in the SMC galaxy
Sabin, L.; Gomez-Llanos, V.; Morisset, C.; Gomez-Gonzalez, V. M. A.;
Guerrero, M. A.; Todt, H.; Fang, X.:
2022, MNRAS 511, 1 - arXiv:2112.09652 (19 pages)
Catching a grown-up starfish planetary nebula - II. Plasma analysis and
central star properties of PC 22
Andreas A.C. Sander, Jorick S. Vink, Erin R. Higgins, Tomer Shenar,
Wolf-Rainer Hamann, Helge Todt:
2022, in: Proceedings of IAU Symp. 366, p. 21 - arXiv:2202.04671
(6 pages)
The origin and impact of Wolf-Rayet-type mass loss
Sidoli, L.; Sguera, V.; Esposito, P.; Oskinova, L.; Polletta, M.:
2022, MNRAS 512, 2929 - arXiv:2203.01040 (7 pages)
XMM-Newton discovery of very high obscuration in the candidate
supergiant fast X-ray transient AX J1714.1-3912
Publications 2021
Gilkis, Avishai; Shenar, Tomer; Ramachandran, Varsha; Jermyn, Adam S.; Mahy, Laurent; Oskinova, Lidia M.; Arcavi, Iair; Sana, Hugues: 2021, MNRAS 503, 1884 - arXiv:2102.03102 (13 pages)The excess of cool supergiants from contemporary stellar evolution models defies the metallicity-independent Humphreys-Davidson limit
Gvaramadze, V. V.; Kniazev, A. Y.; Gallagher, J. S.; Oskinova, L. M.;
Chu, Y. -H.; Gruendl, R. A.; Katkov, I. Y.:
2021, MNRAS 503, 3856 - arXiv:2103.03707 (12 pages)
SALT observations of the supernova remnant MCSNR J0127-7332 and its
associated Be X-ray binary SXP 1062 in the SMC
Leto, P.; (...); Oskinova, L.; et al.:
2021, MNRAS 507, 1979 - arXiv:2107.11995 (26 pages)
A scaling relationship for non-thermal radio emission from ordered
magnetospheres: from the top of the main sequence to planets
Martinez-Chicharro, M.; (...); Oskinova, L.; et al.:
2021, MNRAS 501, 5646 - arXiv:2012.11901 (14 pages)
High resolution X-ray spectroscopy of Supergiant HMXB 4U1700-37 during
the compact object eclipse
Meyer, D. M.-A.; Pohl, M.; Petrov, M.; Oskinova, L.:
2021, MNRAS 502, 5340 - arXiv:2102.06000 (14 pages)
Non-thermal radio supernova remnants of exiled Wolf-Rayet stars
Nichols, Joy S.; .... ; Oskinova, L.; Hamann, W.-R.; et al.:
2021, ApJ 908, 89 - arXiv:2011.07066 (17 pages)
Correlated X-ray and optical variability in the O-type supergiant zeta
Puppis
Ramachandran, V.; Oskinova, L.M.; Hamann, W.-R.:
2021, Astron. Astrophys. 646, A16 - arXiv:2011.08006 (17 pages)
Discovery of O stars in the tidal Magellanic Bridge: Stellar parameters,
abundances, and feedback of the nearest metal-poor massive stars and
their implication for the Magellanic System ecology
Sanjurjo-Ferrin, G.; Torrejon, J. M.; Postnov, K.; Oskinova, L.;
Rodes-Roca, J. J.; Bernabeu, G.:
2021, MNRAS 501, 5892 - arXiv:2012.11683 (21 pages)
X-ray variability of the HMXB Cen X-3: evidence for inhomogeneous
accretion flows
Sidoli, L.; Postnov, K.; Oskinova, L.; Esposito, P.; De Luca, A.;
Marelli, M.; Salvaterra, R.:
2021, Astron. Astrophys. 654, A131 - arXiv:2106.14909 (13 pages)
Detecting the intrinsic X-ray emission from the O-type donor star and
the residual accretion in a supergiant fast X-ray transient in its
faintest state
Toala, J. A.; Jimenez-Hernandez, P.; Rodriguez-Gonzalez, J. B.;
Estrada-Dorado, S.; Guerrero, M. A.; Gomez-Gonzalez, V. M. A.;
Ramos-Larios, G.; Garcia-Hernandez, D. A.; Todt, H.:
2021, MNRAS 503, 1545 - arXiv:2102.12884 (14 pages)
Carbon dust in the evolved born-again planetary nebulae A 30 and A 78
Publications 2020
Fulmer, Leah M.; Gallagher, John S., III; Hamann, Wolf-Rainer; Oskinova, Lida M.; Ramachandran, Varsha: 2020, Astron. Astrophys. 633, A164 - arXiv:1912.08953 (9 pages)Testing massive star evolution, star-formation history, and feedback at low metallicity: Photometric analysis of OB stars in the SMC Wing
Hainich, R.; Oskinova, L. M.; Torrejón, J. M.; Fuerst, F.; Bodaghee,
A.; Shenar, T.; Sander, A. A. C.; Todt, H.; Spetzer, K.; Hamann, W.-R.:
2020, Astron. Astrophys. 634, A49 - arXiv:2001.02420 (44 pages)
The stellar and wind parameters of six prototypical HMXBs and their
evolutionary status
Hajduk, Marcin; Todt, Helge; Hamann, Wolf-Rainer; Borek, Karolina; van
Hoof, Peter A. M.; Zijlstra, Albert A.:
2020, MNRAS 498, 1205 - arXiv:2009.14616 (16 pages)
The cooling-down central star of the planetary nebula SwSt 1: a late
thermal pulse in a massive post-AGB star?
David P. Huenemoerder, Richard Ignace, Nathan A. Miller,
Kenneth G. Gayley, Wolf-Rainer Hamann, Jennifer Lauer,
Anthony F.J. Moffat, Yael Naze, Joy S. Nichols, Lidia
Oskinova, Noel D. Richardson, Wayne Waldron:
2020, Astrophys. J. 893, 53 - arXiv:2003.06889
(18 pages)
A Deep Exposure in High Resolution X-Rays Reveals the Hottest Plasma in
the ζ Puppis Wind
Leto, P.; (...); Oskinova, L.M.; et al.:
2020, Monthly Notices Roy. Astron. Soc. 493, A4657 - arXiv:2002.09251
(20 pages)
Evidence for radio and X-ray auroral emissions from the magnetic B-type
star rho Oph A
Liu, Jifeng; Zheng, Zheng; Soria, Roberto; Aceituno, Jesus; Zhang,
Haotong; Lu, Youjun; Wang, Song; Hamann, Wolf-Rainer; Oskinova, Lida M.;
Ramachandran, Varsha; et al.:
2020, ApJ 900, id. 42 - arXiv:2005.12595 (10 pages)
Phase-dependent Study of Near-infrared Disk Emission Lines in LB-1
Meyer, D. M.-A. ; Oskinova, L. M. ; Pohl, M. ; Petrov, M.:
2020, MNRAS 496, 3906 - arXiv:2006.06027 (6 pages)
On the ring nebulae around runaway Wolf-Rayet stars
Montes, Virginie A.; Hofner, Peter; Oskinova, Lidia M.; Linz, Hendrik:
2020, Astrophys. J. 888, 118 - arXiv:1806.06293 (20 pages)
A Chandra X-ray and Infrared Study of the Stellar Population in the
High-Mass Star Forming Region IRAS 16562-3959
Oskinova, Lidia M.; Ignace, Richard; Leto, Paolo; Postnov, Konstantin
A.:
2020, Astron. Astrophys. 641, L8 - arXiv:2007.11591 (8 pages)
Chandra's X-ray study confirms that the magnetic standard Ap star KQ Vel
hosts a neutron star companion
Oskinova, Lidia M.; Gvaramadze, Vasilii V.; Gräefener, Götz;
Langer, Norbert; Todt, Helge:
2020, Astron. Astrophys. Letters 644, L8 - arXiv:2008.10612 (9 pages)
X-rays observations of a super-Chandrasekhar object reveal an ONeMg and
a CO white dwarf merger product embedded in a putative SN Iax remnant
Pritzkuleit, Max: Masterthesis, Univ. Potsdam
Spectral Analyses of Wolf-Rayet Stars in
the Triangulum-Galaxy (M33)
Sander, A.A.C.; Vink, J.S.; Hamann, W.-R.:
2020, MNRAS 491, 4406 - arXiv:1910.12886 (20 pages)
Driving classical Wolf-Rayet winds: A Γ- and Z-dependent mass-loss
Toalá, J. A.; Guerrero, M. A.; Todt, H.; Sabin, L.; Oskinova, L. M.;
Chu, Y. -H.; Ramos-Larios, G.; Gómez-González, V. M. A.:
2020, MNRAS 495, 3041 - arXiv:2003.06371 (10 pages)
The Bubble Nebula NGC 7635 - testing the wind-blown bubble theory
Zhang, Wei; Todt, Helge ; Wu, Hong ; Shi, Jianrong;
Hsia, Chih-Hao ; Wu, Yuzhong ; Wu, Chaojian; Zhao, Yongheng; Zhang, Tianmeng; Hou, Yonghui:
2020, ApJ 902, 62Z - arXiv:2008.08205 (10 pages)
A New Transition Wolf-Rayet WN/C Star in the Milky Way
Publications 2019
Dolezalova, Barbora; Kubatova, Brankica; Kubat, Jiri; Hamann, Wolf-Rainer: 2019, in: ASP Conference Series, Vol. 519, p. 197The Quasi-WR Star HD 45166 Revisited
Drake, J.; ...; Oskinova, L.; et al.: 2019,
Bulletin of the American Astronomical Society, Vol. 51, Issue 3, id. 113
- arXiv:1903.12338 (6 pages)
High-Energy Photon and Particle Effects on Exoplanet Atmospheres and
Habitability
Gruner, D.; Hainich, R.; Sander, A. A. C.; Shenar, T.; Todt, H.;
Oskinova, L. M.; Ramachandran, V.; Ayres, T.; Hamann, W.-R.:
2019, Astron. Astrophys. 621, A63 - arXiv:1811.07820
The extreme O-type spectroscopic binary HD93129A. A quantitative,
multiwavelength analysis
Gvaramadze, V. V.; Kniazev, A. Y.; Oskinova, L. M.: 2019, MNRAS 485, 6 -
arXiv:1902.02351 (5 pages)
Discovery of a putative supernova remnant around the long-period X-ray
pulsar SXP 1323 in the Small Magellanic Cloud
Hainich, R.; Ramachandran, V.; Shenar, T.; Sander, A. A. C.; Todt, H.;
Gruner, D.; Oskinova, L. M.; Hamann, W.-R.:
2019, Astron. Astrophys. 621, 63 - arXiv:1811.06307 (12 pages)
PoWR grids of non-LTE model atmospheres for OB-type stars of various
metallicities
Hamann, W.-R.; ; Gräfener, G.; Liermann, A.; Hainich, R.;
Sander, A. A. C.; Shenar, T.; Ramachandran, V.; Todt, H.; Oskinova, L. M.:
2019, Astron. Astrophys. 625, A57 - arXiv:1904.04687 (11 pages)
The Galactic WN stars revisited. Impact of Gaia distances on fundamental
stellar parameters
Kubatova, B.; Szecsi, D.; Sander, A. A. C.; Kubat, J.; Tramper, F.;
Krticka, J.; Kehrig, C.; Hamann, W.-R.; Hainich, R.; Shenar, T.:
2019, Astron. Astrophys. 623, A8 - arXiv:1810.01267 (33 pages)
Low-metallicity massive single stars with rotation. II. Predicting
spectra and spectral classes of chemically-homogeneously evolving stars
Kubatova, Brankica; Hamann, Wolf-Rainer; Kubat, Jiri; Oskinova,
Lidia M.:
2019, in: ASP Conference Series, Vol. 519, p. 209
3D Monte Carlo Radiative Transfer in Inhomogeneous Massive Star Winds -
Application to Resonance Line Formation
Leto, P.; Trigilio, C.; Oskinova, L. M.; et al.:
2019, MNRAS Letters 482, L4 - arXiv:1809.07504 (5 pages)
The polarization mode of the auroral radio emission from the early-type
star HD 142301
Massa, D.; Oskinova, L. M.; Prinja, R.; Ignace, R.:
2019, Astrophys. J. 873, article id. 81 - arXiv:1901.09959 (23 pages)
Coordinated UV and X-ray spectroscopic observations of the O-type giant
xi Per: the connection between X-rays and large-scale wind structure
Miller, N., Waldron, W., Nichols, J., Huenemoerder, D., Dahmer,
M., Ignace, R., Lauer, J., Moffat, A., Naze, Y., Oskinova, L.,
Richardson, N., Ramiaramanantsoa, T., and Shenar, T.:
2019, in: Proceedings IAU Symposium No. 346, L. Oskinova, E. Bozzo and T.
Bulik (eds.), p. 88 (5 pages)
X-ray spectroscopy of massive stellar winds:
previous and ongoing observations of the hot
star ζ Pup
Oskinova, L. M.; Bik, A.; Mas-Hesse, J. M.; Hayes, M.; Adamo, A.;
Östlin, G.; Fürst, F.; Oti-Floranes, H.: 2019,
Astron. Astrophys. 627, A63 - arXiv:1903.05142 (7 pages)
ULX contribution to stellar feedback: an intermediate-mass black hole
candidate and the population of ULXs in the low-metallicity starburst
galaxy ESO 338-4
Oskinova, Lidia M.; Bozzo, Enrico; Bulik, Tomasz; Gies, Douglas R.:
Proceedings of the International Astronomical Union, Volume 346
High-mass X-ray Binaries: Illuminating the Passage from Massive Binaries
to Merging Compact Objects
Plat, A.; Charlot, S.; Bruzual, G.; Feltre, A.; Vidal-Garcia, A.;
Morisset, C.; Chevallard, J.; Todt, H.: 2019, MNRAS 490, 978 -
arXiv:1909.07386 (31 pages)
Constraints on the production and escape of ionizing radiation from the
emission-line spectra of metal-poor star-forming galaxies
Ramachandran, V.; Hamann, W.-R.; Oskinova, L. M.; Gallagher, J. S.;
Hainich, R.; Shenar, T.; Sander, A. A. C.; Todt, H.; Fulmer, L.:
2019, Astron. Astrophys. 625, A104 - arXiv:1903.01762 (31 pages)
Testing massive star evolution, star formation history, and feedback at
low metallicity. Spectroscopic analysis of OB stars in the SMC Wing
Andreas A.C. Sander, Wolf-Rainer Hamann, Helge Todt, Rainer Hainich,
Tomer Shenar, Varsha Ramachandran, Lidia M. Oskinova:
2019, Astron. Astrophys. 621, A92 - arXiv:1807.04293 (17 pages)
The Galactic WC and WO stars: The impact of revised distances from Gaia
DR2 and their role as massive black hole progenitors
Shenar, T.; Sablowski, D.P.; Hainich, R.; Todt, H.; Moffat, A.F.J.;
Oskinova, L.M.; Ramachandran, V.; Sana, H,; Sander, A.A.C.; Schnurr, O.;
St-Louis, N.; Vanbeveren, D.; Goetberg, Y.; Hamann, W.-R.:
2019, Astron. Astrophys. 627, A151 - arXiv:1905.09296 (68 pages)
The Wolf-Rayet binaries of the nitrogen sequence in the Large Magellanic
Cloud: spectroscopy, orbital analysis, formation, and evolution
Shenar, Tomer; Hainich, R.; Hamann, W. -R.; Moffat, A. F. J.; Todt, H.;
Sander, A.; Oskinova, L. M.; Sana, H.; Schnurr, O.; St-Louis, N.:
in: Proceedings of IAU Symp. 346, p. 307 (9 pages)
Spectroscopy of complete populations of Wolf-Rayet binaries in the
Magellanic Clouds
Toala, J. A.; Ramos-Larios, G.; Guerrero, M. A.; Todt, H.:
2019, MNRAS 485, 3360 - arXiv:1902.11219 (10 pages)
Hidden IR structures in NGC 40: signpost of an ancient born-again event
Wolk, S.; ...; Oskinova, L.; et al.: 2019,
Bulletin of the American Astronomical Society, Vol. 51, Issue 3, id. 28
- arXiv:1904.04320 (8 pages)
X-ray Studies of Exoplanets
Publications 2018
Gonzalez-Galan, A.; Oskinova, L. M.; Popov, S. B.; Haberl, F.; Kuehnel, M.; Gallagher III, J. S.; Schurch, M. P. E.; Guerrero, M. A.: 2018, Monthly Notices Roy. Astron. Soc. 475, 2809 - arXiv:1706.05002 (16 pages)A multi-wavelength study of SXP 1062, the long period X-ray pulsar associated with a supernova remnant
Gruner, David: 2018, Master Thesis, Universität Potsdam
The Wolf-Rayet stars of the carbon sequence in the Andromeda Galaxy
Guerrero, Martin A.; Fang, Xuan; Miller Bertolami, Marcelo M.;
Ramos-Larios, Gerardo; Todt, Helge; Alarie, Alexandre; Sabin, Laurence;
Miranda, Luis F.; Morisset, Christophe; Kehrig, Carolina; Zavala, Saul A:
2018, Nature Astronomy 2,784
- arXiv:1808.03462 (6 + 15 pages)
The inside-out planetary nebula around a born-again star
Hainich, R.; Oskinova, L. M.; Shenar, T.; Marchant, P.; Eldridge, J. J.;
Sander, A. A. C.; Hamann, W.-R.; Langer, N.; Todt, H.:
2018, Astron. Astrophys. 609, A94
- arXiv:1707.01912 (25 pages)
Observational properties of massive black hole binary progenitors
Leto, P.; Trigilio, C.; Oskinova, L.; et al.: 2018, MNRAS 476, 562
(18 pages) - arXiv:1801.08738
A combined multiwavelength VLA/ALMA/Chandra study unveils the complex
magnetosphere of the B-type star HR5907
Martinez-Chicharro, M.; Torrejon, J. M.; Oskinova, L.; Fürst, F.;
Postnov, K.; Rodes-Roca, J. J.; Hainich, R.; Bodaghee, A.:
2018, MNRAS 473, 74
- arXiv:1710.01907 (6 pages)
Evidence of Compton cooling during an X-ray flare supports a neutron
star nature of the compact object in 4U1700-37
Nebot Gomez-Moran, A.; Oskinova, L. M.:
2018, Astron. Astrophys. 620, A89 - arXiv:1808.07880 (18 pages)
The X-ray catalog of spectroscopically identified Galactic O stars.
Investigating the dependence of X-ray luminosity on stellar and wind
parameters
Oskinova, Lidia M.; Bulik, Tomasz; Nebot Gomez-Moran, Ada: 2018, Astron.
Astrophys. 613, A10 (7 pages)
Infrared outbursts as potential tracers of common-envelope events in
high-mass X-ray binary formation
Pillitteri, I.; Fossati, L.; Castro Rodriguez, N.; Oskinova, L.; Wolk,
S. J.: 2018, Astron Astropys. 610, L3
- arXiv:1712.00728 (4 pages)
Detection of magnetic field in the B2 star ρ Oph A with ESO FORS2
Ramachandran, V.; Hainich, R.; Hamann, W.-R.; Oskinova, L. M.;
Shenar, T.; Sander, A. A. C. ; Todt, H.; Gallagher, J. S.:
2018, Astron. Astrophys. 609, A7 (27 pages)
- arXiv:1708.05088
Stellar population of the superbubble N206 in the LMC I. Analysis of the
Of-type stars
Ramachandran, Varsha; Hamann, W.-R.; Hainich, R.; Oskinova, L. M.;
Shenar, T.; Sander, A. A. C.; Todt, H.; Gallagher, J. S.:
2018, Astron. Astrophys. 615, A40
- arXiv:1802.07494 (189 pages: 25 + 164)
Stellar population of the superbubble N206 in the LMC II. Parameters of
the OB and WR stars, and the total massive star feedback
Ramiaramanantsoa, Tahina; (...) Shenar, Tomer; et al.:
2018, MNRAS 473, 5532 (44 pages)
- arXiv:1710.08414
BRITE-Constellation high-precision time-dependent photometry of the
early-O-type supergiant ζ Puppis unveils the photospheric drivers of
its small- and large-scale wind structures
Ramiaramanantsoa, Tahina; (...) Shenar, Tomer; et al.:
2018, MNRAS 480, 972 (17 pages)
- arXiv:1807.04660
A BRITE view on the massive O-type supergiant V973 Scorpii: hints
towards internal gravity waves or sub-surface convection zones
Outstanding X-ray emission from the stellar radio pulsar CU Virginis
Sander, Andreas A.C.; Fürst, Felix; Kretschmar, Peter; Oskinova,
Lidia M.; Todt, Helge; Hainich, Rainer; Shenar, Tomer ; Hamann, Wolf-Rainer:
2018, Astron. Astrophys. 610, A60
- arXiv:1708.02947 (19 pages)
Coupling hydrodynamics with comoving frame radiative transfer: II.
Stellar wind stratification in the high-mass X-ray binary Vela X-1
Shenar, T.; Hainich, R.; Todt, H.; Moffat, A. F. J.; Sander, A. A.
C.; Oskinova, L. M.; Ramachandran, V.; Munoz, M.; Pablo, H.; Sana, H.;
Hamann, W.-R: 2018, Astron. Astrophys. 616, A103 - arXiv:1805.00952
(15 pages)
The Shortest-period Wolf-Rayet binary in the Small Magellanic Cloud:
Part of a high-order multiple system
Shenar, T.; Oskinova, L. M.; Järvinen, S. P.; Luckas, P.; Hainich, R.;
Todt, H.; Hubrig, S.; Sander, A. A. C.; Ilyin, I.; Hamann, W.-R.:
2018, Contributions of the Astronomical Observatory Skalnate Pleso, Vol.
48, p. 139 (5 pages)
Constraining the weak-wind problem: an XMM-HST campaign for the magnetic
O9.7 V star HD 54879
Toala, J. A.; Oskinova, L. M.; Hamann, W.-R.; Ignace, R.; Sander, A. A.
C.; Shenar, T.; Todt, H.; Chu, Y.-H.; Guerrero, M. A.; Hainich, R.;
Torrejon, J. M.
2018, ApJ Letters 869, L11 - arXiv:1811.10691 (7 pages)
On the apparent absence of WR+NS systems: the curious case of WR124
Torrejon, J. M.; Reig, P.; Fürst, F.; Martinez-Chicharro, M.;
Postnov, K.; Oskinova, L.:
2018, MNRAS 479, 3366 - arXiv:1806.07305 (7 pages)
NuSTAR rules out a cyclotron line in the accreting magnetar candidate
4U2206+54
Publications 2017
Almeida, L.A.; ...; Shenar, T; et al.: 2017, Astron. Astrophys. 598, A84 (36 pages) - arXiv:1610.03500The Tarantula Massive Binary Monitoring. I. Observational campaign and OB-type spectroscopic binaries
E. Bozzo, F. Bernardini, C. Ferrigno, M. Falanga, P. Romano, L.
Oskinova: 2017, Astron. Astrophys. 608, A128
- arXiv:1709.00716 (19 pages)
The accretion environment of Supergiant Fast X-ray Transients probed
with XMM-Newton
E. Bozzo, L. Oskinova, A. Lobel, W.-R. Hamann:
2017, Astron. Astrophys. 606, 10
- arXiv:1710.01877 (5 pages)
On the super-orbital modulation of supergiant high mass X-ray binaries
Hainich, R.; Shenar, T.; Sander, A.; Hamann, W.-R.; Todt, H.: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 171 (8 pages)
- arXiv:1703.02060
The metallicity dependence of WR winds
Hamaguchi, K.; Oskinova, L.; Russell, C. M. P.; Petre, R.; Enoto,
T.; Morihana, K.; Ishida, M.: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 361 (5 pages)
The Origin of X-ray Emission from the Enigmatic Be Star γ Cassiopeiae
Hamann, W.-R.; Oskinova, L.; Todt, H.; Sander, A.;
Hainich, R.; Shenar, T.; Ramachandran, V.: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 223 (5 pages)
- arXiv:1702.05629
Massive stars in advanced evolutionary stages, and the progenitor of
GW150914
R. Ignace, K. T. Hole, L. M. Oskinova, J. P. Rotter:
2017, Astrophys. J. 850, 82
- arXiv:1710.05764 (10 pages)
An X-ray Study of Two B+B Binaries: AH Cep and CW Cep
Kretschmar, P; ...; Oskinova, L.M.; ...; Sander, A; et al.: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 355 (4 pages)
- arXiv:1702.06744
Stellar Winds in Massive X-ray Binaries
Leto, P.; Trigilio, C.; Oskinova, L.; Ignace, R.; Buemi, C. S.; Umana,
G.; Ingallinera, A.; Todt, H.; Leone, F.: 2017, MNRAS 467, 2820
(15 pages) - arXiv:1701.07679
The detection of variable radio emission from the fast rotating
magnetic hot B-star HR7355 and evidence for its X-ray aurorae
Martinez-Nunez, S., (...), Oskinova, L.M., (...), Sander, A., et al.:
2017, Journal of Space Science Reviews 212, 59 (98 pages)
- arXiv:1701.08616
Towards a unified view of inhomogeneous stellar winds in isolated
supergiant stars and supergiant high mass X-ray binaries
L.M. Oskinova, D.P. Huenemoerder, W.-R. Hamann, T. Shenar, A. A. C.
Sander, R. Ignace, H. Todt: 2017, Astrophys. J. 845, 39
- arXiv:1707.04473 (18 pages)
On the binary nature of massive blue hypergiants: high-resolution X-ray
spectroscopy suggests that Cyg OB2 12 is a colliding wind binary
Oskinova, L.M.; Ignace, R.; Huenemoerder, D.P: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 151 (5 pages)
- arXiv:1702.05613
X-ray diagnostics of massive star winds
P. Padovani; ...; L. Oskinova; et al.: 2017,
- arXiv:1705.06064 (70 pages)
ESO-Athena Synergy White Paper
Ignazio Pillitteri, Scott J. Wolk, Fabio Reale, Lida
Oskinova: 2017, Astron. Astrophys. 602, A92
- arXiv:1703.04686 (10 pages)
The early B-type star Rho Oph A is an X-ray lighthouse
Postnov, K.; Oskinova, L.; Torrejon, J. M.: 2017, MNRAS 465, 119
(6 pages)
- arXiv:1610.07799
A propelling neutron star in the enigmatic Be-star γ Cassiopeia
Postnov, K.; Oskinova, L.; Torrejon, J. M.: 2017, in:
Proc. 11th INTEGRAL Conference Gamma-Ray Astrophysics in
Multi-Wavelength Perspective, 10-14 October 2016, Amsterdam, The
Netherlands (9 pages)
- arXiv:1701.00336
Low-luminosity stellar wind accretion onto neutron stars in HMXBs
Richardson, Noel D.; (...) Shenar, Tomer; et al.:
2017, MNRAS 471, 2715 (16 pages)
- arXiv:1707.03390
The variability of the BRITE-est Wolf-Rayet binary, γ2 Velorum I.
Photometric and spectroscopic evidence for colliding winds
Coupling hydrodynamics with comoving frame radiative transfer: I. A unified approach for OB and WR stars
Sander, Andreas A.C.: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 215 (8 pages)
- arXiv:1702.04798
Recent advances in non-LTE stellar atmosphere models
Graciela Sanjurjo, Jose Miguel Torrejon, Konstantin Postnov, Lida
Oskinova, Jose Joaquin Rodes-Roca, Guillermo Bernabeu:
2017, Astron. Astrophys. J. 606, 145
- arXiv:1706.04907 (12 pages)
XMM-Newton spectroscopy of the accreting magnetar candidate 4U0114+65
Schoeller, M; ...; Oskinova L.M.; ...: 2017, Astron. Astrophys. 599, 66 (12 pages)
- arXiv:1611.04502
B fields in OB stars (BOB): Concluding the FORS 2 observing campaign
T. Shenar, L. M. Oskinova, S. P. Järvinen, P. Luckas, R. Hainich, H.
Todt, S. Hubrig, A. A. C. Sander, I. Ilyin, W.-R. Hamann:
2017, Astron. Astrophys. 606, 91 (13 pages)
- arXiv:1708.01261
A combined HST and XMM-Newton campaign for the magnetic O9.5V star HD
54879: towards constraining the weak-wind problem of massive stars
Shenar, T; ...; Todt, H.; Hamann, W.-R.; Oskinova, L.M.; Sander, A.;
et al.: 2017, Astron. Astrophys. 598, A85 (16 pages)
- arXiv:1610.07614
The Tarantula Massive Binary Monitoring project: II. A first SB2 orbital
and spectroscopic analysis for the Wolf-Rayet binary R145
Shenar, T.; Hainich, R.; Todt, H.; Sander, A.; Hamann, W.-R.; Moffat,
A.; Eldridge, J. J.; Pablo, H.; Oskinova, L.; Richardson, N.: 2017, in:
Proceedings of the IAU Symposium No. 329 "The lives and death-throes
of massive stars", p. 445 (1 page)
The formation of Wolf-Rayet stars in the SMC is not dominated by mass
transfer
Toala J.A., Oskinova L.M., Ignace R.: 2017, Astrophys. J. 838, 19 (6 pages)
- arXiv:1703.04059
On the Absence of Non-thermal X-Ray Emission around Runaway O Stars
Publications 2016
Aldoretta, E., (...), Shenar, T., (...): 2016, Monthly Not. Roy. Astron. Soc. 460, 3407 (11 pages) - arXiv:1605.04868An extensive spectroscopic time-series of three Wolf-Rayet stars. I. The lifetime of large-scale structures in the wind of WR 134
Bozzo, E.; Oskinova, L.; Feldmeier, A.; Falanga, M.:
2016, Astron. Astrophys. 589, A102 - arXiv:1603.05187 (11 pages)
Clumpy wind accretion in supergiant neutron star high mass X-ray
binaries
A. Gimenez-Garcia, T. Shenar, J. M. Torrejon, L. Oskinova, S.
Martinez-Nunez, W.-R. Hamann, J. J. Rodes-Roca, A. Gonzalez-Galan, J.
Alonso-Santiago, C. Gonzalez-Fernandez, G. Bernabeu, A. Sander:
2016, Astron. Astrophys. 591, A26 - arXiv:1603.00925 (25 pages)
Measuring the stellar wind parameters in IGR J17544-2619 and Vela X-1
constrains the accretion physics in Supergiant Fast X-ray Transient and
classical Supergiant X-ray Binaries
Discovery of Rapidly Moving Partial X-ray Absorbers within Gamma Cassiopeiae
S. Hubrig, A. Kholtygin, I. Ilyin, M. Schöller, L.M. Oskinova:
2016, Astrophys. J. 822, 104 (7 pages)
- arXiv:1604.01068
The first spectropolarimetric monitoring of the peculiar O4Ief
supergiant zeta Puppis
Hubrig, S.; Scholz, K.; Hamann, W.-R.; Schöller, M.; Ignace, R.;
Ilyin, I.; Gayley, K. G.; Oskinova, L. M.:
2016, Monthly Not. Roy. Astron. Soc. 458, 3381 (13 pages)
- arXiv:1603.01441
Searching for a magnetic field in Wolf-Rayet stars using FORS 2
spectropolarimetry
Lidia M. Oskinova: 2016, Advances in Space Research, Vol. 58, p. 739 (48 pages)
- arXiv:1607.01553
X-ray diagnostics of massive star winds
Lidia M. Oskinova, Brankica Kubatova, Wolf-Rainer Hamann: 2016, Journal Quant.
Spect. Rad. Trans. (JQSRT), Vol. 183, p. 100 (13 pages)
- arXiv:1607.02388
Moving inhomogeneous envelopes of stars (Review)
Przybilla, N.; Fossati, L.; Hubrig, S.; Nieva, M.-F.; Järvinen, S. P.;
Castro, N.; Schöller, M.; Ilyin, I.; Butler, K.; Schneider, F. R. N.;
Oskinova, L. M.; Morel, T.; Langer, N.; de Koter, A.; the BOB
collaboration: 2016, Astron. Astrophys. 587, A7 - arXiv:1601.02268
(15 pages)
B fields in OB stars (BOB): Detection of a magnetic field in the
He-strong star CPD-57 3509
Richardson, Noel D.; Shenar, Tomer; et al.:
2016, MNRAS 461, 4115 (11 pages)
- arXiv:1606.09586
The CHARA Array resolves the long-period Wolf-Rayet binaries WR 137 and
WR 138
Sandin C.; Steffen, M.; Schönberner, D.; Rühling, U.:
2016, Astron. Astrophys. 586, A57 - arXiv:1512.04986 (11 pages)
Hot bubbles of planetary nebulae with hydrogen-deficient winds
I. Heat conduction in a chemically stratified plasma
T. Shenar, R. Hainich, H. Todt, A. Sander, W.-R. Hamann, A. F. J.
Moffat, J. J. Eldridge, H. Pablo, L. M. Oskinova, N. D. Richardson:
2016, Astron. Astrophys. 591, A22 - arXiv:1604.01022 (10+10 pages)
Wolf-Rayet stars in the Small Magellanic Cloud:
II. Analysis of the binaries
Steinke, M.; Oskinova, L. M.; Hamann, W.-R.; Sander, A.; Liermann, A.;
Todt, H.: 2016, Astron. Astrophys. 588, A9 - arXiv:1601.03395 (10 pages)
Analysis of the WN star WR 102c, its WR nebula, and the associated
cluster of massive stars in the Sickle Nebula
Thomas, Timon; Feldmeier, Achim:
2016, Monthly Notices Roy. Astron. Soc. 460, 1923 (11 pages)
Radiative waves in stellar winds with line scattering
Toalá, J. A.; Oskinova, L. M.; González-Galán, A.; Guerrero M. A.;
Ignace, R.; Pohl, M:
2016, Astrophys. J. 821, 79 (9 pages)
- arXiv:1602.07805
X-Ray Observations of Bow Shocks around Runaway O Stars. The Case of
ζ Oph and BD+43°3654
Publications 2015
N. Castro, L. Fossati, S. Hubrig, S. Simón-Díaz, M. Schöller, I. Ilyin, T. A. Carrol, N. Langer, T. Morel, F. R. N. Schneider, N. Przybilla, A. Herrero, A. de Koter, L. M. Oskinova, A. Reisenegger, H. Sana, the BOB collaboration: 2015, A&A 581, A81 - arXiv:1507.03591 (16 pages)B fields in OB stars (BOB): Detection of a strong magnetic field in the O9.7 V star HD54879
Corcoran, M. F, (...), Shenar, T., (...), Oskinova, L., Hamann, W.-R.,
et al.: 2015, Astrophys. Journal 809, 132 (19 pages)
- arXiv:1507.05101
A Coordinated X-ray and Optical Campaign of the Nearby Massive Binary δ
Orionis Aa:
I. Overview of the X-ray spectrum
C. J. Evans, J. Th. van Loon, R. Hainich, M. Bailey:
2015, A&A 584, A5 - arXiv:1508.03490 (19 pages)
2dF-AAOmega spectroscopy of massive stars in the Magellanic Clouds:
The north-eastern region of the Large Magellanic Cloud
B fields in OB stars (BOB): on the detection of weak magnetic fields in the two early B-type stars beta CMa and ε CMa. Possible lack of a "magnetic desert" in massive stars
Gimenez-Garcia, A.; Torrejon, J. M.; Eikmann, W.; Martinez-Nunez,
S.; Oskinova, L. M.; Rodes-Roca, J. J.; Bernabeu, G.:
2015, Astron. Astrophys. 576, A106 (31 pages) - arXiv:1501.03636v2
An XMM-Newton view of FeKalpha in high-mass X-ray binaries
R. Hainich, D. Pasemann, H. Todt, T. Shenar, A. Sander, W.-R. Hamann :
2015, A&A 581, A21 (30 pages) - arXiv:1507.04000
Wolf-Rayet stars in the Small Magellanic Cloud:
I. Analysis of the single WN stars
B fields in OB stars (BOB): FORS2 spectropolarimetric follow-up of the two rare rigidly rotating magnetosphere stars HD23478 and HD345439
Hubrig, S.; Schöller, M.; Kholtygin, A. F.; Tsumura, H.; Hoshino, A.;
Kitamoto, S.; Oskinova, L.; Ignace, R.; Todt, H.; Ilyin, I.:
2015, Monthly Notices Roy. Astron. Soc. 447, 1888 (10 pages)
- arXiv:1412.1658
New multiwavelength observations of the Of?p star CPD -28o2561
Huenemoerder, David P.; Gayley, Kenneth G.; Hamann, Wolf-Rainer;
Ignace, Richard; Nichols, Joy S.; Oskinova, Lidia; Pollock, Andrew M.
T.; Schulz, Norbert S.; Shenar, Tomer:
2015, Astrophys. Journal 815, 29 (16 pages) - arXiv:1511.01832
Probing Wolf-Rayet Winds: Chandra/HETG X-Ray Spectra of WR 6
The donor star of the X-ray pulsar X1908+075
Nichols, J.S., (...), Shenar, T., (...), Hamann, W.-R., Oskinova, L., et
al.: 2015, Astrophys. Journal 809, 133 (21 pages)
- arXiv:1507.04927
A Coordinated X-ray and Optical Campaign of the Nearby Massive Binary δ
Orionis Aa:
II. X-ray Variability
Oskinova, L. M.; Todt, H.; Huenemoerder, D. P.; Hubrig, S.; Ignace, R.;
Hamann, W.-R.; Balona, L.: 2015, Astron. Astrophys. 577, A32 (5 pages)
- arXiv:1503.05749
On X-ray pulsations in beta Cephei-type variables
Pablo, H., (...), Shenar, T., (...), Hamann, W.-R., (...), Oskinova, L.,
et al.: 2015, Astrophys. Journal 809, 134 (11 pages)
- arXiv:1504.08002
A Coordinated X-ray and Optical Campaign of the Nearby Massive Binary δ
Orionis Aa:
III. Analysis of Optical Photometric MOST and Spectroscopic (Ground
Based) Variations
A. Sander, T. Shenar, R. Hainich, A. Gímenez-García, H.
Todt,
and W.-R. Hamann: 2015, A&A 577, A13 (13 pages)
On the consistent treatment of the quasi-hydrostatic layers in hot star
atmospheres
A Coordinated X-ray and Optical Campaign of the Nearby Massive Binary δ Orionis Aa:
IV. A multiwavelength, non-LTE spectroscopic analysis
Shrader, C. R.; Hamaguchi, K.; Sturner, S. J.; Oskinova, L. M.; Almeyda,
T.; Petre, R: 2015, Astrophys. J. 799, 84 - arXiv:1410.4050
High-energy Properties of the Enigmatic Be Star gamma Cassiopeiae
Toala, J. A.; Guerrero, M. A.; Todt, H.; Hamann, W.-R.; Chu, Y.-H.;
Gruendl, R. A.; Schönberner, D.; Oskinova, L. M.; Marquez-Lugo, R. A.;
Fang, X.; Ramos-Larios, G.: 2015, Astrophys. J. 799, 67 -
arXiv:1411.3837
The Born-again Planetary Nebula A78: An X-Ray Twin of A30
H. Todt, A. Y. Kniazev, V. V. Gvaramadze, W.-R. Hamann, M. Peña, G.
Gräfener, D. Buckley , L. Crause, S. M. Crawford, A. A. S. Gulbis ,
C. Hettlage, E. Hooper, T.-O. Husser, P. Kotze, N. Loaring, K.
H. Nordsieck, D. O'Donoghue, T. Pickering, S. Potter,
E. Romero-Colmenero, P. Vaisanen, T. Williams, M. Wolf:
2015, ASPC 493, 539
Hydrogen-deficient central stars of planetary nebulae
H. Todt, M. A. Guerrero, X. Fang, J. A. Toalá, , J. S. Arthur, W. P.
Blair,
Y.-H. Chu, R. A. Gruendl, W.-R. Hamann, R. A. Márquez-Lugo, L.
Oskinova, N. Ruiz, M. Steffen, D. Schönberner:
2015, ASPC 493, 141
The Born-again Planetary Nebulae Abell 30 and Abell 78
H. Todt, A. Sander, R. Hainich, W.-R. Hamann, M. Quade, T. Shenar:
2015, A&A, 579, 75
Potsdam Wolf-Rayet model atmosphere grids for WN stars
Torrejón, J. M.; Schulz, N. S.; Nowak, M. A.; Oskinova, L.; Rodes-Roca,
J. J.; Shenar, T.; Wilms, J.:
2015, Astrophys. J. 810, 102 (11 pages)
On the Radial Onset of Clumping in the Wind of the B0I Massive Star
QV Nor
Publications 2014
A. Danehkar, H. Todt, B. Ercolano and A. Y. Kniazev: 2014, Monthly Notices Roy. Astron. Soc., 439, Issue 4, p.3605-3615Observations and three-dimensional photoionization modelling of the Wolf-Rayet planetary nebula Abell 48
Fang, X.; Guerrero, M. A.; Marquez-Lugo, R. A.; Toalá, J. A.; Arthur,
S. J.; Chu, Y.-H.; Blair, W. P.; Gruendl, R. A.; Hamann, W.-R.;
Oskinova, L. M.; Todt, H.:
2014, Astrophys. J. 797, 100 - arXiv:1410.3872
Expansion of Hydrogen-poor Knots in the Born-again Planetary Nebulae A30
and A78
V.V. Gvaramadze, A.-N. Chene, A.Y. Kniazev, O. Schnurr, T. Shenar, A.
Sander, R. Hainich, N. Langer, W.-R. Hamann, Y.-H. Chu, R.A. Gruendl:
2014, Monthly Notices Roy. Astron. Soc. 442, 929 - arXiv:1405.1423
Discovery of a new Wolf-Rayet star and a candidate star cluster in the
Large Magellanic Cloud with Spitzer
R. Hainich, U. Rühling, H. Todt, L. M. Oskinova, A. Liermann,
G. Gräfener, C. Foellmi, O. Schnurr, and W.-R. Hamann:
2014, Astron. Astrophys. 565, A27 - arXiv:1401.5474
The Wolf-Rayet stars in the Large Magellanic Cloud:
A comprehensive analysis of the WN class
Hubrig, S.; Fossati, L.; Carroll, T. A.; Castro, N.; González, J. F.;
Ilyin, I.; Przybilla, N.; Schöller, M.; Oskinova, L. M.; Morel, T.;
Langer, N.; Scholz, R. D.; Kharchenko, N. V.; Nieva, M.-F.:
2014, Astron. Astrophys. 564, L10 - arXiv:1403.0491
B fields in OB stars (BOB): The discovery of a magnetic field in a
multiple system in the Trifid Nebula, one of the youngest star forming
regions
Kurfürst, P.; Feldmeier, A.; Krticka, J.:
2014, Astron. Astrophys. 569, A23 - arXiv:1407.7952
Time-dependent modeling of extended thin decretion disks of critically
rotating stars
Kusterer, D.-J.; Nagel, T.; Hartmann, S.; Werner, K.; Feldmeier, A.:
2014, Astron. Astrophys. 561, A14
Monte Carlo radiation transfer in CV disk winds: application to the AM
CVn prototype
D. Massa, L. Oskinova, A.W. Fullerton, R.K. Prinja, D.A.
Bohlender, N.D. Morrison, M. Blake and W. Pych:
2014, Monthly Notices Roy. Astron. Soc. 441, 2173 - arXiv:1403.5601
CIR Modulation of the X-ray Flux from the O7.5
III(n)((f)) Star ξ Persei?
Yael Naze, Q. Daniel Wang, You-Hua Chu, Robert Gruendl, Lida Oskinova:
2014, Astrophys. J. Suppl. 213, 23 - arXiv:1406.3979
A Deep Chandra Observation of the Giant HII Region N11.
I. X-ray Sources in the Field
Oskinova, Lidia M.; Naze, Yael; Todt, Helge; Huenemoerder, David P.;
Ignace, Richard; Hubrig, Swetlana; Hamann, Wolf-Rainer:
2014, Nature Comm. 5, 4024 - arXiv:1406.0845
A new type of X-ray pulsar
N. Reindl, T. Rauch, M. Parthasarathy, K. Werner, J.W. Kruk, W.-R.
Hamann, A. Sander, and H. Todt:
2014, Astron. Astrophys. 565, A40 - arXiv:1403.6056
The rapid evolution of the exciting star of the Stingray Nebula
N. Reindl, T. Rauch, K. Werner, J.W. Kruk, H. Todt:
2014, Astron. Astrophys. 566, A116
On helium-dominated stellar evolution: the mysterious role of the
O(He)-type stars
A. Sander, H. Todt, R. Hainich, and W.-R. Hamann:
2014 Astron. Astrophys. 563, A89 - arXiv:1402.2282
The Wolf-Rayet stars in M31: I. Analysis of the late-type WN stars
T. Shenar, W.-R. Hamann, H. Todt: 2014, Astron. Astrophys. 562, A118
- arXiv:1401.2159
The impact of rotation on the line profiles of Wolf-Rayet stars
M. Steffen, S. Hubrig, H. Todt, M. Schöller, W.-R. Hamann,
C. Sandin, D. Schönberner:
2014, Astron. Astrophys. 570, A88
Weak magnetic fields in central stars of planetary nebulae?
M. Steffen, S. Hubrig, H. Todt, M. Schöller, W.-R. Hamann,
C. Sandin, D. Schönberner:
2014, in: Putting A Stars into Context: Evolution, Environment, and
Related Stars, Publishing house "Pero", p. 351-356
Detecting weak magnetic fields in the central stars of planetary nebulae
Publications 2013
S. Burgemeister, V.V. Gvaramadze, G.S. Stringfellow, A.Y. Kniazev, H. Todt, and W.-R. Hamann: 2013, Monthly Notices Roy. Astron. Soc. 429, 3305WR120bb and WR120bc: a pair of WN9h stars with possibly interacting circumstellar shells
Hubrig, S.; Schöller, M.; Ilyin, I.; Kharchenko, N. V.; Oskinova, L. M.;
Langer, N.; Gonzalez, J. F.; Kholtygin, A. F.; Briquet, M.; Magori
Collaboration:
2013, Astron. Astrophys. 551, 33 - arXiv:1301.4376
Exploring the origin of magnetic fields in massive stars. II. New
magnetic field measurements in cluster and field stars
R. Ignace, K.G. Gayley, W.-R. Hamann, D.P. Huenemoerder, L.M.
Oskinova, A.M.T. Pollock, M. McFall:
2013, Astrophys. J. 775, 29 - arXiv:1307.7074
The XMM-Newton EPIC X-ray Light Curve Analysis of WR 6
R. Ignace, L.M. Oskinova, D. Massa:
2013, Monthly Notices Roy. Astron. Soc. 429, 516
A report on the X-ray properties of the τ Sco-like stars
Yael Naze, Lidia M. Oskinova, Eric Gosset:
2013, Astrophys. J. 763, 143 - arXiv:1212.1554
A Detailed X-Ray Investigation of ζ Puppis. II. The Variability on Short
and Long Timescales
L. M. Oskinova, M. Steinke, W.-R. Hamann, A. Sander, H. Todt, A.
Liermann: 2013, Monthly Notices Royal Astron. Soc. 436, 3357 -
arXiv:1309.7651
One of the most massive stars in the Galaxy may have formed in isolation
L. M. Oskinova, W. Sun, C. J. Evans, V. Henault-Brunet, Y.-H. Chu, J. S.
Gallagher III, M. A. Guerrero, R. A. Gruendl, M. Güdel, S. Silich, Y.
Chen, Y. Naze, R. Hainich, J. Reyes-Iturbide:
2013, Astrophys. J. 765, 73 - arXiv:1301.3500
Discovery of X-ray emission from young suns in the Small Magellanic
Cloud
R. Sturm, F. Haberl, L. M. Oskinova, M. P. E. Schurch, V.
Henault-Brunet, J. S. Gallagher III, A. Udalski: 2013, Astron.
Astrophys. 556, 139 - arXiv:1304.6022
Long-term evolution of the neutron-star spin period of SXP 1062
B. Surlan, W.-R. Hamann, A. Aret, J. Kubat, L.M. Oskinova, A.F. Torres:
2013, Astron. Astrophys. 59, A130 - arXiv:1310.0449
Macroclumping as solution of the discrepancy between Hα and P v mass
loss diagnostics for O-type stars
H. Todt, A. Y. Kniazev, V. V. Gvaramadze, W.-R. Hamann, D. Buckley, L.
Crause, S. M. Crawford, A. A. S. Gulbis, C. Hettlage, E. Hooper, T.-O.
Husser, P. Kotze, N. Loaring, K. H. Nordsieck, D. O'Donoghue, T.
Pickering, S. Potter, E. Romero-Colmenero, P. Vaisanen, T. Williams, M.
Wolf:
2013, Monthly Notices Roy. Astron. Soc. 430, 2302
Abell 48 - a rare WN-type central star of a planetary nebula
Todt H., Peña M., Hamann W.-R., Gräfener G.: 2013, in:
Eurowd2012, Proceedings of the 18th European Workshop on White Dwarfs,
J. Krzesinski, G. Stachowski,
P. Moskalik (eds.), ASP Conf. Ser. 469, 303
Spectral analyses of Wolf-Rayet type central stars
Publications 2012
C. J. Evans, R. Hainich, L. M. Oskinova, J. S. Gallagher III, Y.-H. Chu, R. A. Gruendl, W.-R. Hamann, V. Henault-Brunet, H. Todt: 2012, Astrophysical J. 753, 173A rare O3-type dwarf revealed in the wing of the Small Magellanic Cloud
M. A. Guerrero, N. Ruiz, W.-R. Hamann, Y.-H. Chu, H. Todt, D.
Schoenberner, L. Oskinova, R. A. Gruendl, M. Steffen, W. P. Blair, J. A.
Toala: 2012, Astrophysical J. 755, 129
Rebirth of X-ray Emission from the Born-Again Planetary Nebula A 30
M.A. Guerrero, Y.-H. Chu, W.-R. Hamann, L.M. Oskinova, D. Schönberner,
H. Todt, M. Steffen, N. Ruiz, R.A. Gruendl, W.P. Blair:
2012, in: "Planetary Nebulae; an Eye to the Future", IAU Symp. 283,
p. 378
Ablation and Wind Mass-Loading in the
Born-Again Planetary Nebula A30
Gvaramadze V.V., (...), H. Todt, W.-R. Hamann, et al.:
2012, Monthly Notices Roy. Astron. Soc. 421, 3325 - 3337
Discovery of two new Galactic candidate luminous blue
variables with WISE
Rainer Hainich: Diplomarbeit, Universität Potsdam, 2012
Non-LTE Spektralanalyse von OB-Sternen
im Sternhaufen NGC 602 in der kleinen
Magellanschen Wolke
V. Henault-Brunet, L.M. Oskinova, M.A. Guerrero, W. Sun, Y.-H. Chu,
C.J. Evans, J.S. Gallagher III, R.A. Gruendl, J. Reyes-Iturbide:
2012, Monthly Notices Roy. Astron. Soc. Letters, 420, L13 - L17
Discovery of a Be/X-ray pulsar binary and associated supernova
remnant in the Wing of the Small Magellanic Cloud
Huenemoerder D.P., Oskinova L.M., Ignace R., Waldron W.L., Todt H.,
Hamaguchi K., Kitamoto S.: 2012, Astroph. J. Letters 756, L34
On the Weak-Wind Problem in Massive Stars: X-ray Spectra Reveal a
Massive Hot Wind in μ Columbae
A. Liermann, W.-R. Hamann, L.M. Oskinova:
2012, Astron. Astrophys. 540, A14
The Quintuplet cluster.
III. Hertzsprung-Russell diagram and cluster age
L.M. Oskinova, A. Feldmeier, P. Kretschmar:
2012, Monthly Not. Roy. Astron. Soc. 421, 2280 - 2831
Clumped stellar winds in supergiant high-mass X-ray binaries: X-ray
variability and photoionization
L.M. Oskinova, M.A. Guerrero, V. Henault-Brunet, W. Sun, Y.-H. Chu,
C.J. Evans, J.S. Gallagher III, R.A. Gruendl, J. Reyes-Iturbide:
2012, in:
Neutron Stars and Pulsars: Challenges and Opportunities after 80 years
Proceedings IAU Symposium No. 291,
J. van Leeuwen (ed.), p. 459 - 461
The slow X-ray pulsar SXP1062 and
associated supernova remnant in the Wing of
the Small Magellanic Cloud
Oskinova, L.M.; Gayley, K.G.; Hamann, W.-R.; Huenemoerder, D.P.; Ignace,
R.; Pollock, A.M.T.: 2012, Astrophys. J. Letters 747, L25
High-resolution X-ray spectroscopy reveals the special nature of
Wolf-Rayet star winds
Oskinova, L.; Hamann, W.-R.; Todt, H.; Sander, A.:
2012, in: "Four Decades of Research on Massive Stars",
ASP Conference Series, Vol. 465, p. 172 (4 pages)
Macroclumping, Magnetic Fields, and X-Rays in Massive Stars
A. Sander, W.-R. Hamann, H. Todt:
2012, Astron. Astrophys. 540, A144
The Galactic WC stars: Stellar parameters from spectral analyses
indicate a new evolutionary sequence
Sander A., Hamann W.-R.:
2012, in: "Four Decades of Research on Massive Stars",
ASP Conference Series, Vol. 465, p. 243 (5 pages)
WC stars and their role in the life cycle of massive stars
Sander A., Hamann W.-R.:
2012, in: "Four Decades of Research on Massive Stars",
ASP Conference Series, Vol. 465, p. 249 (3 pages)
Stellar Parameters of Galactic WC stars
C. Sandin, M. Steffen, R. Jacob, D. Schönberner, U. Rühling,
W.-R. Hamann, H. Todt:
2012, in: "Planetary Nebulae; an Eye to the Future", IAU Symp. 283, 494
The role of heat conduction to the formation
of [WC]-type Planetary Nebulae
Surlan B., Hamann W.-R., Kubat J., Oskinova L., Feldmeier A.:
2012, in: "Four Decades of Research on Massive Stars",
ASP Conference Series, Vol. 465, p. 134 (7 pages)
3-D Monte Carlo radiative transfer calculation of resonance line
formation in the inhomogeneous expanding stellar wind
Brankica Surlan, Wolf-Rainer Hamann, Jiri Kubat, Lidia M. Oskinova,
Achim Feldmeier: 2012, Astron. Astrophys. 541, A37 (11 pages)
Three-dimensional radiative transfer in clumped hot star winds I. Influence of
clumping on the resonance line formation
Publications 2011
Burgemeister, Sonja: 2011, Bachelorarbeit, Universität PotsdamAnalyse zweier kürzlich entdeckter Wolf-Rayet-Sterne im Scutum-Crux-Arm
Nancy Remage Evans, Kathleen DeGioia-Eastwood, Marc Gagne, Leisa
Townsley, Patrick Broos, Scott Wolk, Yael Naze, Michael Corcoran, Lida
Oskinova, Anthony F. J. Moffat, Junfeng Wang, Nolan R. Walborn:
2011, Astrophys. J. Suppl. Ser. 194:13
The Search for Low-mass Companions of B Stars in the Carina Nebula
Cluster Trumpler 16
Marc Gagne,
Garrett Fehon,
Michael R. Savoy,
David H. Cohen,
Leisa K. Townsley,
Patrick S. Broos,
Matthew S. Povich,
Michael F. Corcoran,
Nolan R. Walborn,
Nancy Remage Evans,
Anthony F.J. Moffat,
Yael Naze and
Lidia M. Oskinova:
2011, Astrophys. J. Suppl. Ser. 194:5
Carina OB Stars: X-ray Signatures of Wind Shocks and Magnetic Fields
Hamann W.-R., Barniske A., Liermann A., Oskinova L.M., Pasemann D.,
Rühling U.: 2011, in: "The multi-wavelength view of hot, massive stars",
Bulletin de la Société Royale des Sciences de Liège,
Vol. 80, p. 98
(online publication,
http://popups.ulg.ac.be/SRSL/sommaire.php?id=2361)
The most luminous stars in the Galaxy and the Magellanic Clouds
A.F. Kholtygin; S.N. Fabrika; N. Rusomarov; W.-R. Hamann;
D.O. Kudryavtsev; L.M. Oskinova; and G.A. Chountonov:
2011, Astronomische Nachrichten 332, 1008 - 1011
Line profile variability and magnetic fields of Wolf-Rayet stars:
WR135 and WR136
Krticka, Jiri; Feldmeier, Achim; Oskinova, Lidia M.; Kubat, Jiri;
Hamann, Wolf-Rainer:
2011, Proc. IAU Symp. 272, p. 614 - 615
X-ray emission from hydrodynamical wind
simulations in non-LTE models
Liermann A., Hamann W.-R., Oskinova L.M., Todt H.: 2011,
in: "The multi-wavelength view of hot, massive stars",
Bulletin de la Société Royale des Sciences de Liège,
Vol. 80, p. 160
(online publication,
http://popups.ulg.ac.be/SRSL/sommaire.php?id=2361)
High-mass stars in the Galactic center Quintuplet cluster
Moschner, Nadine:
2011, Master (of Education) Thesis, Universität Potsdam
Wolf-Rayet-Sterne in Galaxien mit
unterschiedlichem Metallgehalt:
Ein phänomenologischer Vergleich ihrer Spektren (1MB)
Y. Naze, P.S. Broos, L. Oskinova, L.K. Townsley, D. Cohen, M.F.
Corcoran, N.R. Evans, M. Gagne, A.F.J. Moffat, J.M. Pittard, G. Rauw, A.
ud-Doula, N.R. Walborn:
2011, Astrophys. J. Suppl. Ser. 194:7
Global X-ray properties of the O and B stars in Carina
L.M. Oskinova, H. Todt, R. Ignace, J.C. Brown, J.P. Cassinelli, W.-R. Hamann:
2011, MNRAS 416, 1456
Early magnetic B-type stars: X-ray emission and wind properties
L.M. Oskinova, W.-R. Hamann, J.P. Cassinelli, J.C. Brown, H. Todt:
2011, Astronomische Nachrichten 332, 988 - 993
X-ray emission from massive stars with magnetic fields
Oskinova L.M., Hamann W.-R., Ignace R., Feldmeier A.:
2011, in: "The multi-wavelength view of hot, massive stars",
Bulletin de la Société Royale des Sciences de Liège,
Vol. 80, p. 54
(online publication,
http://popups.ulg.ac.be/SRSL/sommaire.php?id=2361)
X-rays, clumping and wind structures
E.R. Parkin, P.S. Broos, L.K. Townsley, J.M. Pittard, A.F.J. Moffat,
Y. Naze, G. Rauw, L.M. Oskinova, W.L. Waldron:
2011, Astrophys. J. Suppl. Ser. 194, 8
X-ray Emission from the Double-binary OB-star System QZ Car (HD 93206)
Pasemann D., Rühling U., Hamann W.-R.: 2011, in:
"The multi-wavelength view of hot, massive stars",
Bulletin de la Société Royale des Sciences de Liège,
Vol. 80, p. 180
(online publication,
http://popups.ulg.ac.be/SRSL/sommaire.php?id=2361)
Spectral analyses of the Wolf-Rayet stars in the Small Magellanic Cloud
Rauw G., Oskinova L.M.: 2011, in: "The multi-wavelength view of hot, massive stars",
Bulletin de la Société Royale des Sciences de Liège,
Vol. 80, p. 475
(online publication,
http://popups.ulg.ac.be/SRSL/sommaire.php?id=2361)
Studying massive stars with the International X-ray Observatory
Sander A., Hamann W.-R., Todt H.: 2011, in:
"The multi-wavelength view of hot, massive stars",
Bulletin de la Société Royale des Sciences de Liège,
Vol. 80, p. 185
(online publication,
http://popups.ulg.ac.be/SRSL/sommaire.php?id=2361)
Revised spectral analyses of Galactic WC stars
Schoeller, M.; Hubrig, S.; Ilyin, I.; Kharchenko, N. V.; Briquet, M.;
Langer, N.; Oskinova, L. M.; the MAGORI collaboration:
2011, Astronomische Nachrichten 332, 994 - 997
Magnetic field studies of massive main sequence stars
Leisa Townsley, ..., L.M. Oskinova, et al.:
2011, Astrophys. J. Suppl. Ser. 194:1 (28 pages)
AN INTRODUCTION TO THE CHANDRA CARINA COMPLEX PROJECT
Zühlke, Julia:
2011, Master (of Education) Thesis, Universität Potsdam
Reduktion und Auswertung von Beobachtungen Planetarischer Nebel mit dem
Integralfeld-Spektrographen PMAS (20Mb)
Publications 2010
Gagne M., Townsley L., Corcoran M., Cohen D., Dickerson K., Oskinova L.M., Naze Y., Broos P.: 2010, Bulletin of the American Astronomical Society Vol. 41, p. 684The Chandra Carina Complex Project: Massive Stars
Gorski M., Ignace R., Oskinova L.M.:
2010, Bulletin of the American Astronomical Society Vol. 41, p. 344
An X-ray Analysis of α Cru
Gvaramadze V.V.,
Kniazev A.Y.,
Hamann W.-R.,
Berdnikov L.N.,
Fabrica S.,
Valeev A.F.:
2010, Monthly Notices Roy. Astron. Soc. 403, 760
A new Wolf-Rayet star and its circumstellar nebula in Aquila
Hamann W.-R.:
2010, Astrophysics and Space Science 329, 151
Stellar winds from hot low-mass stars
Ignace, R.; Oskinova, L. M.; Jardine, M.; Cassinelli, J. P.;
Cohen, D. H.; Donati, J.-F.; Townsend, R. H. D.; ud-Doula, A.:
2010, ApJ 721, 1412
Multiphase Suzaku Study of X-rays from τ Sco
Jeffery, C.S., Hamann W.-R.:
2010, Monthly Notices Roy. Astron. Soc. 404, 1698
Stellar Winds and Mass Loss from Extreme Helium Stars
Liermann A., Hamann W.-R., Oskinova L.M., Todt H., and Butler K.: 2010,
Astron. Astrophs. 524, A82
The Quintuplet cluster
II. Analysis of the WN stars
Liermann A., Kraus M., Schnurr O., Borges M.:
2010, MNRAS, 408, L6
The 13Carbon footprint of B[e] supergiants
Liermann A., Hamann W.-R., Feldmeier A., Oskinova L.M., Rühling U.,
Todt H.:
2010, RevMexAA 38, 50
Structured stellar winds
Oskinova L.M., Ignace R.:
2010, ASP Conf. Series 423, p. 52
X-ray Emission from the Star-Forming Region NGC 602 in the SMC
Oskinova L.M.,
Gruendl R.A.,
Ignace R.,
Hamann W.-R.,
Feldmeier A.,
Chu Y.-H.:
2010, Astrophys. J. 712, 763
Hard X-ray emission in the star-forming
region ON2: discovery with XMM-Newton
Rühling U., Sandin C., Steffen M., Schönberner D.,
Hamann W.-R., Todt H.: 2010, in:
17th European White Dwarf Workshop. AIP Conference Proceedings,
Vol. 1273, p. 219 (online publication)
Diffuse X-rays from PNe with WR-type central stars
Sander A.: 2010, Diplomarbeit, Universität Potsdam
Die galaktischen Wolf-Rayet-Sterne der
Kohlenstoffsequenz
Sundqvist J.O., Puls J., Feldmeier A.:
2010, Astron. Astrophys. 510, 11
Mass loss from inhomogeneous hot star winds
I. Resonance line formation in 2D models
Todt H., Peña M., Hamann W.-R., Gräfener G.:
2010, Astron. Astrophys. 515, 83
The central star of the planetary nebula PB 8:
a Wolf-Rayet-type wind of an unusual WN/WC chemical composition
Todt H.:
Dissertation
Hydrogen-deficient central stars of planetary nebulæ
H. Todt, M. Peña, W.-R. Hamann, G. Gräfener: 2010, in:
17th European White Dwarf Workshop. AIP Conference Proceedings,
Vol. 1273, p. 213 (online publication)
[WN] central stars of planetary nebulae
Votruba V., Feldmeier A., Krticka J., Kubat J.:
2010, Astrophys. Space Sci. 329, 159
Multicomponent stellar wind from hot subdwarfs stars
Publications 2009
Gvaramadze V.V., Fabrica S., Hamann W.-R., Sholukhova O., Valeev A.F., Goranskij V.P., Cherepashchuk A.M., Bomans D.J., Oskinova L.M.: 2009, Monthly Notices Roy. Astron. Soc. 400, 524Discovery of a new Wolf Rayet star and its ring nebula in Cygnus
Hamann W.-R., Gräfener G., Oskinova L.M., Feldmeier A: 2009,
in: Recent directions in astrophysical quantitative spectroscopy and
radiation hydrodynamics. AIP Conference Proceedings 1171, p. 136-147
Spectroscopy and hydrodynamics of dense stellar winds
Krticka J., Feldmeier A., Oskinova L.M., Kubat J., Hamann W.-R.:
2009, Astron. Astrophys. 508, 841
X-ray emission from hydrodynamical simulations in non-LTE wind models
Liermann, Adriane:
2009, Thesis, Universität Potsdam
Massive stars in the Galactic Center Quintuplet cluster
Liermann, A., Hamann W.-R., Oskinova L.M.: 2009,
Astron. Astrophs. 494, 1137
The Quintuplet cluster I. A K-band spectral catalog of stellar sources
Oskinova L. M., Hamann, W. -R., Feldmeier, A., Ignace, R., Chu, Y. -H.: 2009,
Astrophys. J. Letters 693, L44-L48
Discovery of X-ray Emission from the Wolf-Rayet star WR142 of oxygen subtype
Publications 2008
Barniske A., Oskinova L.M., Hamann W.-R.: 2008, Astron. Astrophys. 486, 971Two extremely luminous WN stars in the Galactic Center with circumstellar emission from dust and gas
A. Feldmeier, W.-R. Hamann, D. Rätzel, L. M. Oskinova: 2008, in:
Clumping in Hot Star Winds, W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 115
Hydrodynamic simulations of clumps
Gräfener, G: 2008, in:
Clumping in Hot Star Winds, W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 103
Clumping in hydrodynamic atmosphere models
Gräfener G., Hamann W.-R.: 2008,
in: Mass Loss from Stars and the Evolution of Stellar Clusters,
A. de Koter, L.J. Smith and L.B.F.M. Waters (eds.),
ASP Conf. Ser., Vol. 388, p. 21
Are Wolf-Rayet winds driven by radiation?
Gräfener G., Hamann W.-R.: 2008,
in: Metal Rich Universe, Garik Israelian and George Meynet (eds.),
Series: Cambridge Contemporary Astrophysics, p. 321
Are WNL stars tracers of high metallicity?
Gräfener, G. and Hamann, W.-R.: 2008, Astron. Astrophys. 482, 945
Mass loss from late-type WN stars and its Z-dependence:
very massive stars approaching the Eddington limit
Gräfener G., Hamann W.-R.: 2008,
in: Massive Stars: Fundamental Parameters and Circumstellar Interactions,
P. Benaglia, G. L. Bosch, & C. E. Cappa (eds.),
Revista Mexicana de Astronomia y Astrofisica (Serie de Conferencias) Vol.
33, p. 88
The nature of the Wolf-Rayet phenomenon: mass loss close to the
Eddington limit
Gräfener G., Hamann W.-R., Todt H.: 2008,
in: Hydrogen-Deficient Stars. K. Werner and
T. Rauch (eds.), ASP Conf. Ser., Vol. 391, p. 99
WR Wind Models: [WC]-Type CSPN vs. Massive Stars
Hamann W.-R., Gräfener G., Feldmeier A., Oskinova L.,
Barniske A., Liermann A.: 2008,
in: Hydrogen-Deficient Stars. K. Werner and
T. Rauch (eds.), ASP Conf. Ser., Vol. 391, p. 293
Wolf-Rayet Analyses
Wolf-Rainer Hamann, Achim Feldmeier, Lidia Oskinova (eds.)
Clumping in Hot-Star Winds
Proceedings of an International Workshop held in Potsdam,
Germany, 18.-22. June 2007.
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981.
ISBN 978-3-940793-33-1
Hamann, W.-R., Oskinova, L.M., Feldmeier, A.: 2008, in:
Clumping in Hot Star Winds, W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 75
Spectrum formation in clumpy stellar winds
Hamann W.-R., Gräfener G., Oskinova L., Liermann A.: 2008,
in: Mass Loss from Stars and the Evolution of Stellar Clusters,
A. de Koter, L.J. Smith and L.B.F.M. Waters (eds.),
ASP Conf. Ser., Vol. 388, p. 171
Do we understand Wolf-Rayet stars?
Ignace R., Oskinova L. M., Waldron W. L., Hoffman J. L., Hamann W.-R.:
2008,
Astron. Astrophys. Letters, 447, L37
Phase-dependent X-ray observations of the beta Lyrae system:
No eclipse in the soft band
Liermann, A., Hamann, W.-R.: 2008, in:
Clumping in Hot Star Winds, W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 247
Clumping in Galactic WN stars: a comparison of mass loss rates from
UV/optical & radio diagnostics
Oskinova L.M., Hamann W.-R.: 2008, Monthly Notices Roy. Astron. Soc. 390L, 78
Puzzling X-rays from the new colliding wind binary Wolf-Rayet 65 (WC9d)
Oskinova, L.M., Hamann, W.-R., Feldmeier, A.: 2008, in:
Clumping in Hot Star Winds,
W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 203
X-raying clumped stellar winds
Oskinova L., Hamann W.-R., Feldmeier A.: 2008,
in: Mass Loss from Stars and the Evolution of Stellar Clusters,
A. de Koter, L.J. Smith and L.B.F.M. Waters (eds.),
ASP Conf. Ser., Vol. 388, p. 213
Examining O and WR star winds with X-rays
Miriam Peña, M. Teresa Ruiz, Patricio Rojo, Silvia Torres-Peimbert,
and Wolf-Rainer Hamann: 2008, Astrophysical Journal 680, 109
A New Outburst In the Extraordinary Central Star of LMC-N66
Rauw G., Naze Y., Oskinova L.M.: 2008,
Astronomische Nachrichten 329, 222
X-ray spectroscopy of early-type stars: the present and the future
Rühling, U.: 2008,
Diplomarbeit an der Universität Potsdam
WN-Sterne in der LMC
Todt, H., Hamann, W.-R., Gräfener, G.: 2008, in:
Clumping in Hot Star Winds, W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 251
Clumping in [WC]-type Central Stars from electron-scattering line wings
Todt H., Peña M., Hamann W.-R., Gräfener G.: 2008,
in: Hydrogen-Deficient Stars. K. Werner and
T. Rauch (eds.), ASP Conf. Ser., Vol. 391, p. 95
Determining element abundances of [WC]-type Central Stars for probing stellar
evolution and nucleosynthesis
Votruba, V., Feldmeier, A., Kubat, J., Rätzel, D.: 2008, in:
Clumping in Hot Star Winds, W.-R. Hamann, A. Feldmeier & L.M. Oskinova (eds.),
Potsdam: Univ.-Verlag,
URN: http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13981, p. 252
Multicomponent stellar wind of hot stars
Votruba V., Feldmeier A., Kubat J., Nikutta R.: 2008,
in: Mass Loss from Stars and the Evolution of Stellar Clusters,
A. de Koter, L.S. Smith and R. Waters (eds.),
ASP Conf. Ser., Vol. 388, p. 229
Multicomponent stellar wind of hot stars
Waldron W.L., Cassinelli J.P., Oskinova L.M., Lamers H.: 2008,
in: American Astronomical Society 211th Meeting, Austin, Texas
The B Supergiant Discontinuous Drop in X-ray Luminosity at Spectra Typ
Oskinova L.M.: 2008, NASA Press Release 15.07.2008
'Peony Nebula' Star Settles for Silver Medal
NASA link
Pdf Version (english)
Pdf Version (deutsch)
Publications 2007
Gräfener G., Hamann W.-R.,: 2007, in: A.F.J. Moffat and N. St-Louis (eds), Massive Stars in Interacting Binaries, ASP Conf. Series, Vol. 367, p. 131Hydrodynamic model atmospheres for WR stars: first results and their consequences for interacting winds in massive binary systems
Hamann W.-R., Gräfener G.: 2007,
in: A.F.J. Moffat and N. St-Louis (eds),
Massive Stars in Interacting Binaries, ASP Conf. Series, Vol. 367, p. 141
Wolf-Rayet spectra: how to tell binaries from singles
Madura T., Owocki S.P., Feldmeier A.: 2007,
Astrophysical Journal, 660, 687-698
A Nozzle Analysis of Slow-Acceleration Solutions in One-dimensional
Models of Rotating Hot-Star Winds
Oskinova, L. M.: 2007,
in: A.F.J. Moffat and N. St-Louis (eds),
Massive Stars in Interacting Binaries, ASP Conf. Series, Vol. 367, p. 637
Evolution of X-ray emission from young massive stellar clusters
Oskinova L. M., Hamann W.-R., Feldmeier A.: 2007,
Astron. Astrophys., 476, 1331-1340
Neglecting the porosity of hot-star winds can lead to underestimating
mass-loss rates
Votruba, V., Feldmeier, A., Kubat, J., Nikutta, R.: 2007, in:
Active OB-Stars: Laboratories for Stellar & Circumstellar Physics,
A. Okazaki, S. Owocki and S. Stefl (eds.),
ASP Conf. Ser., Vol. 361, p. 165
Time-dependent simulation of a multicomponent stellar wind
Votruba, V., Feldmeier, A., Kubat, J., Rätzel, D.: 2007, in:
Astron. Astrophysics, 474, 549
A hydrodynamic scheme for two-component winds from hot stars
Publications 2006
Barniske A., Hamann W.-R., Gräfener G.: 2006, in: Stellar Evolution at Low Metallicity: Mass Loss, Explosions, Cosmology. Eds. H.J.G.L.M. Lamers, N. Langer, T. Nugis & K. Annuk. ASP Conference Series, Vol. 353, p. 243Wolf-Rayet stars of the carbon sequence
Barniske A., Oskinova L., Hamann W.-R., Gräfener: 2006, in:
Stellar Evolution at Low Metallicity: Mass Loss, Explosions,
Cosmology. Eds. H.J.G.L.M. Lamers, N. Langer, T. Nugis & K. Annuk.
ASP Conference Series, Vol. 353, p. 241
Spitzer mid-IR spectroscopy of Wolf-Rayet stars: the frequent
detection of circumstellar dust
Feldmeier A., Nikutta R.: 2006,
Astron. Astrophysics, 446, 661
Nonlocal radiative coupling in non monotonic stellar winds
Gräfener, G., Hamann, W.-R.,: 2006, in:
Highlights of Astronomy, Vol. 14, XXVIth IAU General Assembly,
K.A. van der Hucht (ed.), JD05 #7
The masses of late-type WNL stars
Gräfener G., Hamann W.-R.: 2006, in:
Stellar Evolution at Low Metallicity: Mass Loss, Explosions,
Cosmology. Eds. H.J.G.L.M. Lamers, N. Langer, T. Nugis & K. Annuk.
ASP Conference Series, Vol. 353, p. 171
The metallicity dependence of WR wind models
Hamann W.-R., Gräfener G., Liermann A.: 2006,
Astron. Astrophysics, 457, 1015
The Galactic WN stars.
Spectral analyses with line-blanketed model atmospheres versus stellar
evolution models with and without rotation
Hamann W.-R., Gräfener G., Liermann A.: 2006, in:
Stellar Evolution at Low Metallicity: Mass Loss, Explosions,
Cosmology. Eds. H.J.G.L.M. Lamers, N. Langer, T. Nugis & K. Annuk.
ASP Conference Series, Vol. 353, p. 185
The Galactic WN stars: line-blanketed analyses versus evolutionary models
Oskinova L. M., Feldmeier A., Hamann W.-R.: 2006,
Mon. Not. R. Astron. Soc., 372, 313
High resolution X-ray spectroscopy of bright O type stars
Oskinova L., Feldmeier A., Hamann W.-R.: 2006, in:
Proceedings of the symposium "The X-ray Universe 2005", ESA, El Escorial,
Madrid, Spain, 26-30 September 2005, ESA SP-604, 57-62
O Stars X-ray Line Profiles Explained by Radiation Transfer in Inhomogeneous
Stellar Wind
Oskinova L., Feldmeier A., Hamann W.-R.: 2006, in:
High Resolution X-ray Spectroscopy: towards XEUS and Con-X,
Proceedings of the international workshop held at the Mullard Space Science
Laboratory of University College London, Holmbury St Mary, Dorking, Surrey,
UK, March 27 - 28, 2006, Ed. Branduardi-Raymont, G.,
published electronically., p.E2
Quantitative X-ray Spectroscopy of Massive Stars
Todt, H., Gräfener, G., Hamann, W.-R.: 2006, in:
Planetary Nebulae in Our Galaxy and Beyond, Proceedings
IAU Symposium No. 234, M.J. Barlow and R.H. Méndez (eds.), p. 127
Revised element abundances for WC-type central stars
Publications 2005
C. J. Evans, S. J. Smartt, J.-K. Lee, D. J. Lennon, A. Kaufer, P. L. Dufton, C. Trundle, A. Herrero, S. Simon-Diaz, A. de Koter, W.-R. Hamann, M. A. Hendry, I. K. Hunter, M. J. Irwin, A. J. Korn, R.-P. Kudritzki, N. Langer, M. R. Mokiem, F. Najarro, A. W. A. Pauldrach, N. Przybilla, J. Puls, R. S. I. Ryans, M. A. Urbaneja, K. A. Venn, M. R. Villamariz: 2005, Astron. Astrophys., 437, 467-482The VLT-FLAMES Survey of Massive Stars: Observations in the Galactic Clusters NGC 3293, NGC 4755 and NGC 6611
Gräfener, G., Hamann, W.-R.: 2005,
Astron. Astrophys., 432, 633
Hydrodynamic model atmospheres for WR stars: Self-consistent modeling of a WC star wind
Hamann, W.-R., Gräfener, G.: 2005, in:
14th European Workshop on White Dwarfs. D. Koester and
S. Moehler (eds.), ASP Conf. Series, Vol. 334, 341
Hydrogen-deficient stars in pre-WD stages
Hamann, W.-R., Todt H. and Gräfener G.: 2005, in:
"Planetary Nebulae as Astronomical Tools", Proceedings of a Conference
held in Gdansk (Poland), July 2005, p. 153
Hydrogen-deficient central stars revisited
Hamann, W.-R., Pena, M., Gräfener, G.: 2005, in:
14th European Workshop on White Dwarfs. D. Koester and
S. Moehler (eds.), ASP Conf. Series, Vol. 334, 345
LMC-N66: A potential SN Ia progenitor?
Krumpe, M., Coffey, D., Egger, G., Vilardell, F., Lefever, K., Liermann, A., Hoffmann, A.I.,
Steiper, J., Cherix, M., Albrecht, S., Russo, P., Strodl, T., Wahlin, R., Deroo, P.,
Parmar, A., Lund, N., Hasinger, G.,: 2005, in:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIV.,
Proceedings of the SPIE, Edited by Siegmund, Oswald H. W., Volume 5898, pp. 438-451
X-RED: a satellite mission concept to detect early universe gamma ray bursts
Oskinova, L. M.: 2005,
Mon. Not. R. Astron. Soc., 361, 679
Evolution of X-ray emission from young massive star clusters
Oskinova, L. M.: 2005, in:
Proceedings of "Massive Stars and High-Energy Emission in OB
Associations", a workshop of the JENAM 2005, "Distant Worlds", held in
Lige (Belgium), July 4 - 7, 2005, Eds. G. Rauw, Y. Naz, R. Blomme, and
E. Gosset, p. 99 - 102
X-raying the super star clusters in the Galactic center
Publications 2004
Brown J.C., Barrett R.K., Oskinova L.M., Owocki S.P., Hamann W.-R., de Jong J.A., Kaper L., Henrichs H.F.: 2004, Astron. Astrophys., 413, 959Inference of hot star density stream properties from data on rotationally recurrent DACs
Hamann, W.-R., Gräfener, G.: 2004,
Astron. Astrophys., 427, 697
Grids of model spectra for WN stars, ready for use
Oskinova L., Feldmeier A., Hamann W.-R.: 2004,
Astron. Astrophysics, 422, 675
X-ray emission lines from inhomogeneous stellar winds
Pena M., Hamann W.-R.: 2004, in:
Compact Binaries in the Galaxy and Beyond. G. Tovmassian and E. Sion
(eds.). Revista Mexicana de Astronomia y Astrofisica (Serie de
Conferencias) Vol. 20. IAU Colloquium 194, p. 41
The central star of the planetary nebula LMC-N66: a
massive accreting white dwarf?
Pena M., Hamann W.-R., Ruiz M.T., Peimbert A., Peimbert M.: 2004,
Astron. Astrophys., 419, 583
A high resolution spectroscopic study of the extraordinary
planetary nebula LMC-N66
Pena M., Peimbert A., Hamann W.-R., Ruiz M.T., Peimbert M.: 2004, in:
Asymmetric Planetary Nebulae III. ASP Conf. Ser., 313, p. 131
The extraordinary planetary nebula N66 in the LMC
Stasinska G., Gräfener G., Pena M., Hamann W.-R., Koesterke L.,
Szczerba R.: 2004,
Astron. Astrophys., 413, 329
Comprehensive modelling of the planetary nebula LMC-SMP 61 and its
[WC]-type central star
Publications 2003
Hamann, W.-R., Gräfener, G.: 2003, Astron. Astrophys., 410, 993A temperature correction method for expanding atmospheres
Hamann, W.-R., Gräfener, G.: 2003, in:
Astronomische Nachrichten Suppl. Issue 2,
Vol. 324, p. 21
The Surface Composition of Hydrogen-deficient Post-AGB Stars
Hamann, W.-R., Pena, M., Gräfener, G., Ruiz, M.T.,: 2003,
Astron. Astrophys., 409, 969
The central star of the planetary nebula N66 in the Large Magellanic Cloud:
A detailed analysis of its dramatic evolution 1983 - 2000
Ignace, R., Oskinova L., M. and Brown, J. C.: 2003,
Astron. Astrophys., 408, 353
XMM-Newton Observations of the Nitrogen-Rich Wolf-Rayet star WR1
Nikutta, R.: 2003,
Diplomarbeit an der Universität Potsdam
Strahlungskopplung in nichtmonotonen Geschwindigkeitsfeldern der Winde
massereicher Sterne
Oskinova L., M., Ignace, R., Hamann W.-R., Pollock, A. M. T., Brown, J. C.: 2003,
Astron. Astrophysics, 402, 755
The Conspicuous Absence of X-ray Emission from Carbon-Enriched Wolf-Rayet Stars
Feldmeier A., Oskinova L., Hamann W.-R.: 2003,
Astron. Astrophysics, 403, 217
X-ray line emission from a fragmented stellar wind
Feldmeier A., Oskinova L., Hamann W.-R., Owocki S.: 2003, in:
K.A. van der Hucht, A. Herrero and D. Esteban, (eds),
A Massive Star Odyssey, from Main Sequence to Supernova.
Proceedings IAU Symposium No 212, p. 56
Overloaded and Fractured Winds
Gräfener G., L. Koesterke, Hamann W.-R.: 2003, in:
K.A. van der Hucht, A. Herrero and D. Esteban, (eds),
A Massive Star Odyssey, from Main Sequence to Supernova.
Proceedings IAU Symposium No 212, p. 714
The WR population in CTS 1026
Gräfener G., Hamann W.-R.: 2003, in:
K.A. van der Hucht, A. Herrero and D. Esteban, (eds),
A Massive Star Odyssey, from Main Sequence to Supernova.
Proceedings IAU Symposium No 212, p. 190
Hydrodynamic model atmospheres for hot stars
Gräfener G.: 2003, in: I. Hubeny, D. Mihalas and K. Werner, (eds.),
Stellar Atmosphere Modelling,
ASP Conference Series, Vol. 288, p. 533
Hydrodynamic atmosphere models for hot stars
Hamann W.-R.: 2003, in: I. Hubeny, D. Mihalas and K. Werner, (eds.),
Stellar Atmosphere Modelling.
ASP Conference Series, Vol. 288, p. 171
Basic ALI in Moving Atmospheres
Hamann W.-R., Gräfener G., Koesterke L.: 2003, in:
K.A. van der Hucht, A. Herrero and D. Esteban, (eds),
A Massive Star Odyssey, from Main Sequence to Supernova.
Proceedings IAU Symposium No 212, p. 198
Wolf-Rayet star parameters from spectral analyses
Oskinova L., Feldmeier A., Hamann W.-R.: 2003, in:
K.A. van der Hucht, A. Herrero and D. Esteban, (eds),
A Massive Star Odyssey, from Main Sequence to Supernova.
Proceedings IAU Symposium No 212, p 214
X-ray line profiles from structured stellar winds
Langer N., Wellstein S., Petrovic J.: 2003,
in: K.A. van der Hucht, A. Herrero and D. Esteban, (eds),
A Massive Star Odyssey, from Main Sequence to Supernova. Proceedings IAU
Symposium No 212, p. 275
On the Evolution of Massive Close Binaries
Gräfener G., Hamann W.-R., Pena M.: 2003, in:
S. Kwok, M. Dopita and R. Sutherland, (eds.),
Planetary Nebulae: Their Evolution and Role in the Universe.
Proc. IAU Symp. 209, p. 577
Spectral analysis of the LMC [WC] star SMP 61
Pena M., Hamann W.-R., Ruiz M. T.: 2003, in:
S. Kwok, M. Dopita and R. Sutherland, (eds.),
Planetary Nebulae: Their Evolution and Role in the Universe.
Proc. IAU Symp. 209, p. 579
The LMC planetary nebula N66 revisited.
Nebular kinematics and stellar models
Publications 2002
Feldmeier A.: Habilitation thesis in Astrophysics, Potsdam UniversityHydrodynamics of astrophysical winds driven by scattering in spectral lines
Feldmeier A., Shlosman I.: 2002,
Astrophysical Journal, 564, 385
Abbott Wave-Triggered runaway in Line Driven Winds
from Stars and Accretion Disks
Feldmeier A., Shlosman I., Hamann W.-R.: 2002,
Astrophysical Journal, 566, 392
Runaway Acceleration of Line Driven Winds: the Role
of the outer Boundary
Fryer, C. L., Langer N., Heger A., Wellstein S.: 2002,
Astrophysical Journal, 578, 335
The Limiting Stellar Initial Mass for Black Hole Formation in Close Binary
Gräfener G., Koesterke L., Hamann W.-R.: 2002,
Astron. Astrophys., 387, 244
Line-blanketed model atmospheres for WR stars
Hamann W.-R., Koesterke L., Gräfener G.: 2002, in: Anthony F.J. Moffat
und Nicole St.-Louis, (eds.), Interacting Winds from Massive Stars.
ASP Conference Series, Vol. 260, p. 175
Spectral analyses of Wolf-Rayet winds
Ignace, R., Oskinova L., M., Pollock, A. M. T., Brown, J. C., Hamann W.-R.: 2002, in:
American Astronomical Society Meeting 201
X-rays from Wolf-Rayet Stars
Koesterke L., Hamann W.-R.: 2002, in: Anthony F.J. Moffat
und Nicole St.-Louis, (eds.), Interacting Winds from Massive Stars.
ASP Conference Series, Vol. 260, p. 259
[WC]-type CSPN: Clumping and wind-driving
Koesterke L., Hamann W.-R., Gräfener G.: 2002,
Astron. Astrophys., 384, 562
Expanding atmospheres in non-LTE: Radiation Transfer using Short Characteristics
Langer N., Yoon S.-C., Wellstein S., Scheithauer S..: 2002,
in: The Physics of Cataclysmic Variables and Related Objects, ASP Conference
Proceedings, Vol. 261. Edited by B.T. Gänsicke, K. Beuermann, and
K. Reinsch. ISBN: 1-58381-101-X. San Francisco: Astronomical Society of the
Pacific, 2002, p. 252.
On the evolution of interacting binaries which contain a white dwarf
Publications 2001
Hamann W.-R., Brown J.C., Feldmeier A. and Oskinova L.M.: 2001, Astron. Astrophys., 378, 946On the wavelength drift of spectral features from structured hot star winds
Herwig F.: 2001,
Astrophysics and Space Science 275, p. 15
Internal mixing and surface abundance of [WC]-CSPN
Herwig F.: 2001,
in: "Post-AGB objects as a phase of stellar evolution"
R.Szczerba & S.K.Gorny (eds.),
Astrophysics and Space Science Library (ASSL) series, 249H
Stellar evolution and nucleosynthesis of Post-AGB-Stars
Herwig F., Langer N.: 2001,
in: Salting the early soup: trace nuclei from stars to the solar
system. edited by M. Busso and R. Gallino.
Memorie della Societ Astronomica Italiana,
(ISSN 0037-8720), Vol. 72, N. 2, p. 277-287
Formation of the Neutron Donor 13C in AGB stars by overshoot and roation
Koesterke L.: 2001,
Astrophysics and Space Science 275, p. 41
Spectral analyses of WR-type central stars of Planetary Nebulae
Koesterke L., Hamann W.-R., Urrutia T.: 2001,
Astron. Astrophys., 379, 224
Line-Profile Variability in the Wolf-Rayet Stars WR 135 and WR 111
Langer N., Wellstein S., Heger A.: 2001,
in: The influence of binaries on stellar population studies, Dordrecht:
Kluwer Academic Publishers, 2001, xix, 582 p. Astrophysics and space
science library (ASSL), Vol. 264. ISBN 0792371046, p.273
Massive Single and Binary Star Models: A Comparison
Langer N., Heger, A., Herwig, F., Wellstein S.: 2001,
in: Tours Symposium on Nuclear Physics IV. AIP
Conference Proceedings Volume 561, ISBN 1-56396-996-3.
Edited by M. Arnould et al.. Published by the American
Institute of Physics, Melville, New York, 2001, p.3
Mixing and Thermonuclear Processes in Stars
Wellstein S.: 2001, Thesis, Univ. Potsdam
Präsupernovaentwicklung enger massereicher Doppelsternsysteme
Wellstein S., Langer N., Braun H.: 2001,
Astron. Astrophys., 369, p. 939
Formation of contact in massive close binaries
Publications 2000
Garcia-Segura, G., Franco, J., Lopez, J. A., Langer N., Rozyczka: 2000, in: "Asymmetrical Planetary Nebulae II: From Origins to Microstructures", ASP Conference Series, J. H. Kastner, N. Soker u. S. Rappaport, eds., p. 210MHD Models for Planetary Nebulae
Gräfener G., Hamann W.-R., Koesterke L.,: 2000, in: Thermal and Ionization Aspects of
Flows from Hot Stars: Observations and Theory,
Henny J.G.L.M. Lamers, and Arved Sapar (eds.), ASP Conference Series, Vol. 204, p. 215
The impact of iron group elements on the ionization structure of WC star atmospheres: WR111
Hamann W.-R., Koesterke L.: 2000,
Astron. Astrophys., 360, 647
WN stars in the LMC: parameters and atmospheric abundances
Hamann W.-R., Koesterke L., Gräfener G.: 2000, in: Thermal and Ionization Aspects of
Flows from Hot Stars: Observations and Theory,
Henny J.G.L.M. Lamers, and Arved Sapar (eds.), ASP Conference Series, Vol. 204, p. 197
Non-LTE models of WR winds
Heger, A., Langer, N., Woosley, S. E.: 2000,
Astrophysical Journal, 528, 368
Presupernova Evolution of Rotating Massive Stars I: Numerical Method and
Evolution of the Internal Stellar Structure
Heger, A., Woosley, S. E., Langer, N.: 2000,
in: "The Interplay Between Massive Stars and the ISM", Eds. D. Schaerer.
R. Gonzalez Delgado, New Astronomy Reviews 44, p. 297
Stellar Models including pre-SN/SN phases
Herwig F.: 2000,
in: Astron. Astrophys., 360, 952
The evolution of AGB stars with convective overshoot
Herwig F.: 2000,
in: "Sakurai's Object: What have we learned in the first five years?"
Nye Evans & Barry Smalley (eds.),
Astrophysics and Space Science 279, 103
Modeling the evolution of Sakurai's object
Herwig F., Langer N.: 2000,
in: "Nuclear Physics A", International Conference Nuclei in the Cosmos
2000, June 27 - July 1, Aarhus, Danmark
Convective proton and 3He ingestion into helium burning:
Nucleosynthesis during a post-AGB thermal pulse
Herwig F., Langer N.: 2000,
in: "Salting the Early Soup: Trace Nuclei from Stars to the Solar System",
Torino-Melbourne-Pasadena Workshop in honour of Prof. Gerald J. Wasserburg
Formation of the Neutron Donor 13C in AGB Stars
Overshoot and Rotation
Koesterke L., Gräfener G., Hamann W.-R.: 2000, in: Thermal and Ionization Aspects of
Flows from Hot Stars: Observations and Theory,
Henny J.G.L.M. Lamers, and Arved Sapar (eds.), ASP Conference Series, Vol. 204, p. 239
The structure of iron-blanketed WR atmospheres
Langer N., Deutschmann A., Wellstein S., Höflich P.: 2000,
Astron. Astrophys., 362, p. 1046
The evolution of main sequence star + white dwarf binary systems towards
Type Ia Supernovae
Lugaro M., Herwig F.: 2000,
in: "Nuclear Physics A", International Conference Nuclei in the Cosmos
2000, June 27 - July 1, Aarhus, Danmark
Advances in s-process models
Scheithauer, S.: 2000,
Diplomarbeit an der Universität Potsdam
Helium Akkretion auf C/O-Weiße Zwerge
Wellstein S., Langer N.: 2000,
in: Proceedings of ESO workshop: Black Holes in Binaries and Galactic Nuclei
their Diagnostics, Demography and Formation, p. 295
Constraints on the initial mass limit for black hole information from the
massive X-ray binary Wray 977
Publications 1999
Blöcker T., Driebe T., Herwig F.: 1999, in: Astronomische Gesellschaft Meeting Abstracts, 15, 25AGB evolution with overshoot: hot bottom burning vs. dredge-up
Blöcker T., Herwig F., Driebe T.: 1999,
in: International workshop on The Changes in Abundances in Asymptotic
Giant Branch Stars,
AGB evolution with overshoot: hot bottom burning and dredge-up
Chin Y., Henkel C., Langer N., Mauersberger R.: 1999,
Astrophysical Journal Letters, 512, L143
The detection of extragalactic 15N: Consequences for nitrogen nucleosynthesis
and chemical evolution
De Marco O., Schmutz W., Koesterke L., Hamann W.-R., De Koter A.: 1999, in: K.A. van der
Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and
Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 231
Why should we compare WR Codes?
Driebe T., Blöcker T., Schönberner and F. Herwig: 1999,
in: Astron. Astrophys., 350, 89
The evolution of helium white dwarfs. II. Thermal instabilities
Garcia-Segura, G., Langer N., Rozyczka, M., Franco J.: 1999,
Astrophysical Journal, 517, 767
Shaping Bipolar and Elliptical Planetary Nebulae: Effects of Stellar Rotation,
Photoionization Heating and Magnetic Fields
Garcia-Segura, G., Langer N., Rozyczka, M., Franco J., Mac Low, M.-M.: 1999,
in: K.A. van der Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 325
Hydrodynamics of Ring Nebulae: Magnetic vs. Non-Magnetic Hydro-Models
Gräfener G.: 1999,
Dissertation
Spektralanalysen von WC-Sternen in der LMC
Gräfener G., Hamann W.-R., Koesterke L.: 1999, in: K.A. van der
Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and
Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 240
Spectral analyses of WC stars in the LMC
Hamann W.-R., Koesterke L., Gräfener G.: 1999, in: K.A. van der Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 138
Modelling and quantitative analyses of WR spectra: recent progress and results
Herwig F.: 1999,
in: "Low mass Wolf-Rayet stars: origin and evolution, Amsterdam
Internal mixing and surface abundance of [WC]-CSPN
Herwig F., Blöcker T.: 1999,
in: "The Galactic Halo: From Globular Clusters to Field Stars",
35th Liège International Astrophysics Colloquium
Overshoot in giant stars
Herwig F., Blöcker T., Driebe T.: 1999,
in: International workshop on The Changes in Abundances in Asymptotic
Giant Branch Stars
TP-AGB evolution with overshoot for low-mass stars as a
function of metallicity
Herwig F., Blöcker T., Schönberner D.: 1999, in: "Asymptotic Giant Branch Stars",
IAU Symp. 191, PASP, p. 41
The role of convective boundaries
Herwig F., Blöcker T., Langer N., Driebe T.: 1999,
in: Astron. Astrophys., 349, L5
On the formation of hydrogen-deficient post-AGB stars
Hulbert S., Nota A., Clampin M. Leitherer C., Pasquali A., Langer N. and Schulte-Ladbeck R.:
1999, in: "Variable and non-spherical stellar winds in luminous hot stars", IAU Symp. 169,
B. Wolf (ed.), Lecture Notes in Physics,
Springer Verlag, p. 103
HST WEPCII Observations of the Inner HR Car Nebula
Koesterke L., Hamann W.-R., Gräfener G.: 1999,
in: K.A. van der
Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and
Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 248
Inhomogeneities in Wolf-Rayet atmospheres
Langer N.: 1999, in: "Variable and non-spherical stellar winds
in luminous hot stars", IAU Symp. 169, B. Wolf (ed.), Lecture Notes in Physics,
Springer Verlag, in 359
The Evolution of Non-Spherical and Non-Stationary Winds of Massive Stars
Langer N., Heger A.: 1999, in: K.A. van der Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 187
Evolution and Explosion of Wolf-Rayet Stars
Langer, N., Garcia-Segura, G., Mac Low, M.-M.: 1999,
Astrophysical Journal Letters, 520, L49
Giant Outbursts of Luminous Blue Variables and the
Formation of the Homunculus Nebula Around Eta Carinae
Langer N., Heger A., Wellstein S., Herwig F.: 1999,
Astron. Astrophys., 346, L37
Mixing and nucleosynthesis in rotating TP-AGB stars
Pasquali, A., Nota, A., Langer, N., Schulte-Ladbeck, R. E., Clampin, M.: 1999,
Astrophysical Journal, 119, p. 1352
R4 and its circumstellar nebula: evidence for a binary merger?
Pena M., Stastinska G., Esteban C., Koesterke L., Medina S., Kingsburgh R.: 1999,
in: K.A. van der Hucht, G. Königsberger
und P.R.J. Eenens (eds.), Wolf-Rayet Phenomena in Massive Stars and
Starburst Galaxies, Proc.
IAU Symp. 193 (San Francisco: ASP), p. 382
Spectroscopy of planetary nebulae with [WR] nuclei
Wellstein S., Langer N.: 1999,
Astron. Astrophys., 350, 148
Implications of massive close binaries for black hole formation and
supernovae
Publications 1998
Deutschmann A.: 1998, Diplomarbeit an der Universität PotsdamZur Metallizitätsabhängigkeit der Entwicklung von Typ Ia Supernova-Vorläufersystemen
Dreizler S., Werner K., Rauch T., Reid I. N., Heber U., Koesterke L.,: 1998, in: Proceedings of IAU Symposium 189
on Fundamental Stellar Properties: The Interaction between
Observation and Theory, edited by T. R. Bedding, A. J. Booth and J. Davis, Kluwer, Dordrecht, p. 369
NLTE Analyses of PG 1159 stars: Constraints for the Structure and Evolutiuon of Post-AGB stars
Driebe T., Blöcker T., Herwig F., Schönberner D.: 1998,
in: Astronomische Gesellschaft Meeting Abstracts
Diffusive overshooting in hot bottom burning AGB models
Driebe T., Schönberner D., Blöcker T., Herwig F.: 1998,
in: Astron. Astrophys., 339, 123
The evolution of helium white dwarfs. I. The companion of the millisecond pulsar PSR J1012+5307
Figer D. F., Najarro F., Langer N.: 2000,
in: "Unsolved Problems in Stellar Evolution", proceeding of the 1998 Space Telescope
Science Institute May Symposium, Cambridge University Press: Space
Telescope Institute symposium series, vol. 12, p. 272
The Pistol Star and Massive Stars in the Galactic Center
Figer D. F., Najarro F., Morris M, McLean I. S., Geballe T. R.,
Ghez A. M., Langer N.: 1998,
Astrophysical Journal, 506, 384
The Pistol Star
Garcia-Segura, G, Langer, N., Rozyczka, M, Mac Low, M.-M., Franco, J.,: 1998,
in proc. 6th Texas-Mexico Conference on Astrophysics on
Astronomical Plasmas - Near and Far, S. Torres-Peimbert, R. Dufour,
(eds.), RevMexAA, Vol. 7, p. 50
The effects of rotation and stellar magnetic fields on the nebular shapes:
LBV nebulae and PNe
Gräfener G., Hamann W.-R., Hillier D. J., Koesterke L.: 1998,
Astron. Astrophys., 329, 190
Spectral analyses of WC stars in the LMC
Hamann W.-R., Koesterke L.: 1998,
Astron. Astrophys., 335, 1003
Spectrum formation in clumped stellar winds: consequences for the analyses of
Wolf-Rayet spectra
Hamann W.-R., Koesterke L.: 1998,
Astron. Astrophys., 333, 251
The nitrogen spectra of Wolf-Rayet stars
Hamann W.-R., Koesterke L.: 1998, in: "Variable and non-spherical stellar winds
in luminous hot stars", IAU Symp. 169, B. Wolf (ed.), Lecture Notes in Physics,
Springer Verlag, 239H
Spectral analyses of Wolf-Rayet stars: the impact of clumping
Heger, A., Langer, N.: 1998,
Astron. Astrophys., 334, 210
The spin-up of contracting red supergiants
Heger, A., Langer, N., Woosley, S. E.: 1998,
in "Nuclear Astrophysics", Max-Planck-Institut für Astrophysik, MPA/P10
W. Hillebrandt, E. Müller eds., p. 14
Nucleosynthesis in rotating massive stars
Henkel C., Chin Y., Langer N., Mauersberger R.: 1998, in: proceeding ESO workshop on
"Chemical Evolution form Zero to High Redshift", J. Mathis et al., eds, Lecture Notes
in Physics, Springer Verlag, 103H
Detection of Extragalactic 15N: Nitrogen Nucleosynthesis
and Chemical Evolution
Herwig F., Schönberner D., Blöcker T.: 1998,
in: Astron. Astrophys., 340, L 43
On the validity of the core-mass luminosity relation for TP-AGB stars
with efficient dredge-up
Herwig F., Schönberner D., Blöcker T.: 1998, in: "Asymptotic Giant Branch Stars",
IAU Symp. 191, Abstract
Violation of the Core Mass - Luminosity Relation for AGB models which experience the third
dredge-up
Koesterke L., Werner K.: 1998,
Astrophysical Journal Letters, 500, 55
Determination of mass-loss rates of PG 1159 stars from FUV spectroscopy
Koesterke, L., Dreizler, S., Rauch, T.: 1998,
Astron. Astrophys., 320, 1041
On the mass-loss of PG 1159 stars
Langer N.: 1998,
Astron. Astrophys., 329, 551
Coupled mass and angular momentum loss of massive main sequence stars
Langer N., Heger A.: 1998, in proc. IAU Symposium 190 on "New Views of the Magellanic Clouds",
Y.-H. Chu et al., eds., ASP conference seriese, San Francisco, 190-192L
Massive Star Evolution
Langer, N., Heger, A.,: 1998, in: Proceeding of Workshop on B[e] stars,
C. Jaschek, A. M. Hubert, (eds.), p. 235
B[e] supergiants: What is their evolutionary status?
Langer N., Braun H., Wellstein S.: 1998, in "Nuclear Astrophysics",
W. Hillebrandt, E. Müller eds., p. 18
Massive close binaries as source of galactic 26Al
Langer N., Heger A., Garcia-Segura, G.: 1998, in Rev. Modern Astron.
Vol. 11, p. 57
Massive stars: the pre-supernova evolution of internal and circumstellar strukture
Langer N., Heger A., Braun H.: 1998, in proceedings of the 2nd Oak Ridge
Symposium on Atomic & Nuclear Astrophysics, IOP Publishing,
T. Mezzacappa, ed., p. 377
Nucleosynthesis in massive stars
Langer N., Heger A., Woosley S.E., Herwig F.: 1998, in:
"Nuclei in the Cosmos V", Ed. N. Prantzos, Edition Frontiers,
Paris, p. 129
Nucleosynthesis in Rotating Stars
Leuenhagen, U., Hamann W.-R.: 1998,
Astron. Astrophys., 330, 265
Spectral analyses of late-type [WC] central stars of
planetary nebulae: more empirical constraints for their evolutionary status
Pena M., Stastinska G., Esteban C., Koesterke L., Medina S., Kingsburgh R.: 1998,
Astron. Astrophys., 337, 866
Galactic planetary nebulae with Wolf-Rayet nuclei. I. Objects with [WC]-early type stars
Takahashi K., Faestermann T., Kienle P., Basch F., Langer N.,
Wagenhuber J.: 1998, in "Nuclear Astrophysics", W. Hillebrandt, E. Müller, eds., p. 175
The 187Re - 187Os Cosmochronometry and Chemical
Evolution in the Solar Neighborhood
Wellstein S., Langer N.: 1998,
In: A. Gimenez and B. Montesinos (eds.), Workshop on Stellar Structure Theory and Test of Convective
Energy Transport, (San Francisco: ASP), p. 189
Convection and compact stellar remnants in massive close binaries
Werner K., Dreizler S., Rauch T., Koesterke L., Heber U.: 1998, in: "Asymptotic Giant Branch Stars",
IAU Symp. 191
Born-again AGB stars: Starting point of the H-deficient post-AGB evolutionary sequence?
Werner K., Dreizler S., Rauch T., Barnstedt J., Göz M., Gringel W., Kappelmann N., Krämer G.,
Widmann H., Koesterke L., Haas S., Heber U., Appenzeller I., Grewing M.: 1998, in: Tagungsband Tromsö,
FUV spectroscopy of DO and PG 1159 stars with ORFEUS
Wittkowski M., Langer N., Weigelt G.: 1998,
Astron. Astrophys., 340, L 39
Diffraction-limited Speckle-Masking Interferometry of the Red Supergiant
VY CMa*
Publications 1997
Hamann W.-R.: 1997, in: Planetary Nebulae, IAU Symp.180, H.J. Habing and
H.J.G.L.M. Lamers (eds.), p. 91
Spectra of Wolf-Rayet type central stars and their analysis
Koesterke L., Hamann W.-R.: 1997, in: Planetary Nebulae, IAU Symp. 180, H.J.
Habing and H.J.G.L.M. Lamers (eds.), p. 114
Quantitative spectral analyses of CSPNs of early [WC]-type
Pena M., Hamann W.-R., Koesterke L., Maza J., Mendez R.H., Peimbert
M., Ruiz M.T., Torres-Peimbert S.: 1997, in: Planetary Nebulae, IAU Symp.
180, H.J. Habing and H.J.G.L.M. Lamers (eds.), p. 126
HST spectrophotometric data of the central star of the planetary nebula
LMC-N66
Langer, N., Heger, A.,: 1997, in: Proceeding of 2nd Boulder-Munich Workshop on
Hot Stars,
I. Howarth, (ed.), ASP Conf. Ser., 131, p. 76
The Evolution of Surface Parameters of Rotating Massive Stars
Pena M., Hamann W.-R., Koesterke L., Maza J., Mendez R.H., Peimbert
M., Ruiz M.T., Torres-Peimbert S.: 1997, Astrophys. Journal, 491, 233-241
Spectrophotometric data of the central star of the large magellanic cloud planetary nebula
N66. Quantitative analysis of its WN type spectrum.
Heger A., Jeannin L., Langer N., Baraffe L.: 1997,
Astron. Astrophys., 327, 224
Pulsations in red supergiants with high L/M ratio
Woosley, S. E., Heger, A., Weaver A. T., Langer, N.:
1997, in: SN 1987 A - Ten Years After, M. M. Phillips, N. B. Suntzeff (eds.),
PASPC (astro-ph/9705146)
SN 1987 A - Presupernova Evolution and the Progenitor Star
Koesterke L., Hamann W.-R.: 1997, Astron. Astrophys. 320, 91
Spectral analyses of central stars of planetary nebulae of early WC-type
/ NGC 6751 and Sanduleak 3
Langer, N.: 1997, in: Luminous Blue Variables, Massive Stars in Transition,
ASP Conference Ser., A. Nota, H.J.G.L.M. Lamers (eds.),
120, 83
The Eddington limit in rotating massive stars
Langer N., Heger A., Fliegner J.: 1997, in: Fundamental Stellar Properties,
Proc., IAU-Symp. 189, T. Bedding et al. (eds.),
Kluwer, p. 343
Rotation: a fundamental parameter of massive stars
Osterbart R., Langer N., Weigelt G.: 1997, Astron. Astrophys. 325, 609
High-resolution imaging of the bipolar nebula Red Rectangle
Publications 1996
Hamann W.-R.,Koesterke L.: 1996, in: Wolf-Rayet Stars in the Framework of Stellar Evolution, 33rd Liege International Astrophysical Colloquium, eds. J.M. Vreux et al., p. 491Spectral Analyses with the Standard Model.
Part II: Wolf-Rayet Stars
Hamann W.-R.: 1996, Astrophysics and Space Science 238, 31
Spectral analysis and model atmospheres of WR type central stars
Hamann W.-R.: 1996, in Hydrogen-Deficient Stars,
ASP Conference Series, Vol. 96, 1996, C.S. Jeffery and U. Heber (eds), p. 127
Wolf-Rayet stars of high and low mass
Leuenhagen U., Hamann W.-R., Jeffery C.S.: 1996, Astron. Astrophys. 312, 167
Spectral analyses of late type central stars of planetary nebulae
Werner. K.: 1996, in Röntgenstrahlung from the Universe, MPE Report
263, 205
X-ray emission from hot hydrogen-deficient white dwarfs
Werner K., Dreizler S., Heber U., Rauch T., Fleming T.A., Sion E.M.,
Vauclair G.: 1996, Astron. Astrophys., 307, 860
High resolution spectroscopy of two hot (pre-) white dwarfs with the
Hubble Space Telescope. KPD 0005+5106 and RXJ 2117+3412
Werner. K.: 1996, Astron. Astrophys., 309, 861
Search for trace amounts of hydrogen in hot DO white dwarfs
Werner K., Wolff B., Pakull M.W., Cowley A.P., Schmidtke P.C.,
Hutchings J.B., Crampton D.: 1996, in Supersoft X-ray Sources, ed. J.Greiner,
Lecture Notes in Physics, Springer, Berlin
Non-LTE model atmosphere analysis of the supersoft X-ray source RX J0122.9-7521
Werner K., Dreizler S., Heber U., Rauch T.: 1996, in Astrophysics in the Extreme Ultraviolet,
IAU Colloquium 152, eds. S. Bowyer and R.F. Malina, Kluwer, p. 229
Confining the Edges of the GW Vir Instability Strip
Werner K.: 1996, Astrophys. Journal, 457, L 39
On the Balmer Line Problem
Publications 1995
Barstow M.A., Holberg J.B., Koester D., Nousek J.A., Werner K.: 1995,
In White Dwarfs, eds.
D. Koester and K. Werner, Lecture Notes in Physics 443, Springer, Berlin, p. 302
Extreme Ultraviolet Spectroscopy of White Dwarfs
Hamann W.-R., Koesterke L., Wessolowski U.: 1995, Astron. Astrophys. Suppl.
Ser. 113, 459
Spectral atlas of Galactic Wolf-Rayet stars (WN-sequence)
Hamann W.-R., Koesterke L., Wessolowski U.: 1995, Astron. Astrophys. 299, 151
Spectral analyses of the Galactic Wolf-Rayet stars: hydrogen-helium abundances and improved
stellar parameters for the WN class
Koesterke L., Hamann W.-R.: 1995, Astron. Astrophys 299, 503
Spectral analyses of 25 Galactic Wolf-Rayet Stars of the carbon sequence
Werner K., Rauch T., Dreizler S., Heber U.: 1995, in Astrophysical
Applications of Stellar Pulsation, IAU Colloquium 155, eds. R.S. Stobie and
P.A. Whitelock, ASP Conference Series 83, p. 96
Confining the Edges of the GW Vir Instability Strip
Werner K., Dreizler S., Heber U., Rauch T., Wisotzki L., Hagen H.-J.: 1995,
Astron. Astrophys. 293, L 75
Discovery of two hot DO white dwarfs exhibiting ultrahigh-excitation absorbtion lines
Werner K., Dreizler S., Heber U., Rauch T.: 1995, in Nuclei in Cosmos III,
eds. M.Busso, R. Gallino, C.M. Raiteri, New York, American Institute of
Physics Conference Proceedings 327, p. 45
Triple-alpha burning products on the surface of peculiar post-AGB stars
Werner K., Dreizler S., Wolff B.: 1995, Astron. Astrophys. 298, 567
Spectral analysis of the hot DO white dwarf PG 1034+001
Werner K.: 1995, Baltic Astronomy, 4, 340
Spectra of GW Vir pulsators