Diffuse X-rays from PNe with WR-type central stars

U. Rühling1, 2, C. Sandin2, M. Steffen2, D. Schönberner2, W.-R. Hamann1, H. Todt1,

1Institut für Physik und Astronomie, Universität Potsdam, Germany
2Astrophysikalisches Institut Potsdam, Germany

With the help of detailed nebula modeling and X-ray observations, we want to shed light on the enigmatic origin of Wolf-Rayet type central stars of planetary nebulae. This method allows us to assign observed [WC] stars to one of the proposed evolutionary scenarios, attributing the loss of hydrogen to a “late”, “very late”, or an “AGB final” thermal pulse (LTP, VLTP and AFTP, respectively). Following our analysis, we conclude that BD +30° 3639 evolved through an AFTP.

Display PostScript file (local users only!)

PDF-File (eurowd10_ruehling.pdf, 260kB)

PS-File (eurowd10_ruehling.ps.gz, 260kB, compressed)

PS-File (eurowd10_ruehling.ps, 1.2MB)

Back to publication list