Submitting Campus

Daytona Beach


Physical Sciences

Document Type


Publication/Presentation Date

Winter 2-7-2001


The most recent version of the Catalog of Spectroscopically Identified White Dwarfs lists 2249 white dwarf stars. Among these stars are 109 white dwarfs that have either reliable trigonometric parallaxes or color-based distance moduli that place them at a distance within 20 pc of the Sun. Most of these nearby white dwarfs are isolated stars, but 28 (25% of the sample) are in binary systems, including such well-known systems as Sirius A/B and Procyon A/B. There are also three double degenerate systems in this sample of the local white dwarf population. The sample of local white dwarfs is largely complete out to 13 pc, and the local density of white dwarf stars is found to be 5.0 ± 0.7 × 10-3 pc-3, with a corresponding mass density of 3.4 ± 0.5 × 10-3 M☉ pc-3.

Publication Title

The Astrophysical journal



The Institute of Physics

Grant or Award Name

NASA grant NAGW5-9408

Additional Information

Dr. Oswalt was not affiliated with Embry-Riddle Aeronautical University at the time this paper was published.