White dwarfs in common proper motion binaries

0356731 - ASÚ 2012 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Arazimová, Eva - Kawka, Adela - Vennes, Stephane
White dwarfs in common proper motion binaries.
Binaries - Key to Comprehension of the Universe. San Francisco: Astronomical Society of the Pacific, 2010 - (Prša, A.), s. 147-148. ASP Conference Series, 435. ISBN 978-1-58381-750-6.
[Binaries - Key to Comprehension of the Universe. Brno (CZ), 08.06.2009-12.06.2009]
Grant CEP: GA ČR GD205/08/H005; GA AV ČR(CZ) IAA300030908; GA MŠMT(CZ) LC06014
Grant ostatní: GA AV ČR(CZ) IAA301630901
Program: IA
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: white dwarfs
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika

We examined six common proper motion pairs containing a hydrogen-rich (DA) white dwarf and a main-sequence component. The white dwarfs were selected from the revised New Luyten Two-Tenths (rNLTT) catalog using the optical/infrared (V − J) reduced proper motion and the optical-infrared color diagrams. We f tted the observed spectra with model atmospheres to determine their atmospheric parameters. We discuss attempts to determine the system ages and the effect of metallicity.
Trvalý link: http://hdl.handle.net/11104/0195176