In order to attend the O-MESS, please subscribe to our mailing list. We will send out the Zoom invitation the day before each O-MESS.

Below you can find the program of our meetings. The O-MESS will take place bi-weekly on alternate Tuesday and Wednesdays. The first O-MESS will take place at 17:00 Central European Summer Time (CEST), and the following ones at 17:00 Central European Time (CET) to enable the largest possible global participation. In exceptional cases when e.g. these times are not convenient for the schedule speaker, we might reschedule the seminar to another time. Please check this page regularly for updates.

At what time will O-MESS take place in my city?

This is a good question! Not all countries switch to daylight saving time at the same time, and others do not at all. You can use e.g. this Time Zone Converter to find out at what local time O-MESS will take place. In the e-mail with the Zoom invitation, which will be sent out the day before each O-MESS, we will also include local times for major cities to help avoiding confusion.

Oct 19
O-MESS 2.0 I (Chair: Roberto Raddi)
17:00-17:25 Recent X-ray studies on accreting white dwarf binaries in the old population of dwarf galaxies and globular clusters (abstract)
Sara Saeedi (Dr.Karl-Remeis-Sternwarte Bamberg)
17:25-17:50 Dissecting the compact planetary nebula M2-31 with GTC MEGARA (abstract)
Jackeline Suzett Rechy Garcia (UNAM)
17:50-18:20 coffee break
Nov 3
O-MESS 2.0 II (Chair: Nicole Reindl)
17:00-17:25 Formation of double degenerates with extremely low-mass white dwarf companions (abstract)
Zhenwei Li (Chinese Academy of Sciences)
17:25-17:50 What can Barium stars tell us about binarity and nucleosynthesis in AGB stars? (abstract)
Ana Escorza (ESO)
17:50-18:20 coffee break
Nov 16
O-MESS 2.0 III (Chair: Ingrid Pelisoli)
17:00-17:25 Minor species distillation in crystallizing white dwarfs (abstract)
Simon Blouin (Los Alamos National Laboratory, University of Victoria)
17:25-17:50 PG1144+005 and the role of nitrogen in the evolution and pulsation of GW Vir stars (abstract)
Paulina Sowicka (Nicolaus Copernicus Astronomical Center)
17:50-18:20 coffee break
Dec 1
O-MESS 2.0 IV (Chair: Marcelo Miller Bertolami)
17:00-17:25 How tidally disrupted asteroids pollute white dwarfs (abstract)
Daohai Li (Beijing Normal University)
17:25-17:50 The electron-capture origin of supernova 2018zd (abstract)
Daichi Hiramatsu (Harvard Smithsonian, Las Cumbres Observatory, University of California)
17:50-18:20 coffee break
Dec 14
O-MESS 2.0 V (Chair: Roberto Raddi)
17:00-17:25 Detection of Circumstellar Material and Rotation in a Runaway SNIa Donor (abstract)
Vedant Chandra (Harvard Smithsonian)
17:25-17:50 A Grid of Synthetic Spectra for Subdwarfs: Non-LTE line-blanketed atmosphere models (abstract)
Thayse Adineia Pacheco (Universidade de Sao Paulo)
17:50-18:20 coffee break
Jan 12
O-MESS 2.0 VI (Chair: Nicole Reindl)
17:00-17:25 Hydrodynamic simulations of WD-WD mergers and the origin of RCB stars (abstract)
Sagiv Shiber (Louisiana State University)
17:25-17:50 White dwarfs as a tool to trace the composition and geology of exoplanets (abstract)
Amy Bonsor (University of Cambridge)
17:50-18:20 coffee break
Jan 25
O-MESS 2.0 VII (Chair: Marcelo Miller Bertolami)
17:00-17:25 The Cooling of Massive White Dwarfs from Gaia EDR3 (abstract)
Leesa Fleury (University of British Columbia)
17:25-17:50 Treasure Chest of period bouncers: Detection of the brown dwarf donor in BW Sculptoris (abstract)
Vitaly Neustroev (University of Oulu)
17:50-18:20 coffee break
Feb 9
O-MESS 2.0 VIII (Chair: Ingrid Pelisoli)
17:00-17:25 Modelling the origins of white dwarf debris systems (abstract)
Catriona H. McDonald (University of Warwick)
17:25-17:50 Discovery of a young pre-intermediate polar (abstract)
David J. Wilson (McDonald Observatory, University of Texas at Austin)
17:50-18:20 coffee break