NOAO >   Observing Info >   Approved Programs >   2010A-0087

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Proposal Information for 2010A-0087


PI: Adela Kawka, Astronomicky ustav, AV CR, kawka@sunstel.asu.cas.cz
Address: Stellar Department, Fricova 298, Ondrejov 251 65, Czech Republic

CoI: Stephane Vennes, Astronomicky ustav, AV CR

Title: Properties of high proper motion white dwarfs

Abstract: White dwarfs are the primary end-products of stellar evolution. Studies of their mass, radius and surface composition help establish physical links between main-sequence progenitors and white dwarfs. A complete, unbiased, local sample of white dwarfs is essential to determine these population properties. We have selected a sample of white dwarf candidates based on their proper motion and colors. We propose to obtain high signal-to-noise spectroscopy of these white dwarf candidates in order to determine their atmospheric properties, chemical composition, effective temperature, and surface gravity. These results will expand our knowledge of the local sample of white dwarfs and allow us to determine their kinematical properties which will help in establishing their Galactic population membership.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2010A-0087

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