Post-Common-Envelope Binaries with Distorted Secondaries |
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| Authors: | Adela Kawka Stéphane Vennes |
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| Institution: | (1) Stellar Department, Astronomicky ústav AV čR, Fričova 298, CZ-251 65 Ondřejov, Czech Republic;(2) Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD, USA |
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| Abstract: | We will examine the properties of binary systems which have Roche lobe filling secondaries and white dwarf primaries as well
as systems where the secondary is only partially filling its Roche lobe. We will also discuss observational properties such
as ellipsoidal variations, light reprocessing and radial velocity measurements of the close binary systems BPM 71214, EC 13471-1258
and GD 245. The properties of BPM 71214 and EC 13471-1258 show that these systems may be pre-cataclysmic variables just prior
to the onset of mass transfer or they may be hibernating novae. GD 245 is a pre-cataclysmic variable. |
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| Keywords: | close binary stars white dwarfs |
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