Reference : A First Look at the Nonadiabatic Properties of Pulsating Accreting White Dwarfs of th...
Scientific congresses and symposiums : Poster
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/171884
A First Look at the Nonadiabatic Properties of Pulsating Accreting White Dwarfs of the GW Lib Type
English
Van Grootel, Valérie mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
Fontaine, G. []
Brassard, P. []
Dupret, Marc-Antoine [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
Aug-2014
Yes
No
International
19th European Workshop on White Dwarfs
11-15 août 2014
P. Dufour & P. Bergeron
Montréal
Canada
[en] We present results of a detailed stability survey of the pulsation properties of accreting white dwarfs of the GW Lib type. This is based on several state-of-the- art white dwarf evolutionary sequences with varying envelope compositions, from pure hydrogen to pure helium. Using the same tools as in Van Grootel et al. (2013), where we have presented the first consistent view of the ZZ Ceti instability strip, we have mapped the GW Lib instability strip over the effective temperature-surface gravity plane, and as a function of envelope composition. We find that the location of the GW Lib instability domain is a strong and continuous function of the assumed envelope composition. We can accomodate all of the known GW Lib pulsators in various strips according to their atmospheric compositions.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; ULg
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/171884

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