Identification of candidate very cool, old white dwarfs at low galactic latitudes

Details Identification of candidate very cool, old white dwarfs at low galactic latitudes Identification of candidate very cool, old white dwarfs at low galactic latitudes

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002noao.prop..182l&link_type=abstract

NOAO Proposal ID #2002A-0182

Physics

Scientific paper

We are performing a survey a high proper motion stars at low galactic latitudes, in which we have identified > 130 new stars with proper motion (mu)> 0.5 arcsec yr^-1. These include a set of 21 relatively faint (R> 18) stars, several of which we suspect to be very cool white dwarfs similar to those identified by Oppenheimer et al. (2001), and which are claimed to be evidence for a population of primordial white dwarfs in the halo. We propose to obtain spectra from 16 candidate old white dwarfs, and determine whether or not they can also be associated with a population of halo white dwarfs.

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