Sampling the Local White Dwarfs
University of Arizona, LPL
The sample of local white dwarfs within 20 pc of the sun currently contains some 126 stars and is about 80% complete. Beyond this distance completeness falls significantly. Nevertheless, there are many compelling reasons for extending the local sample to greater distances, while simultaneously maintaining a high level of completeness. Justifications for such a larger relatively unbiased local sample include determinations of the luminosity white dwarf function as well as better characterizations of the degenerate population in terms of, binarity, space motions, and photospheric chemical compositions. I will discuss prospects for expanding the local sample and some of the information that can be expected from it.
Date: Jeudi, le 27 janvier 2011 Heure: 11:30 Lieu: Université de Montréal Pavillon Roger-Gaudry, Local D-460 Contact: Pierre Bergeron