A New Census of the Local White Dwarf Population

Details A New Census of the Local White Dwarf Population A New Census of the Local White Dwarf Population

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1513h&link_type=abstract

American Astronomical Society, AAS Meeting #211, #15.13; Bulletin of the American Astronomical Society, Vol. 39, p.766

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Scientific paper

We have conducted a new detailed survey of the local population of white dwarfs lying within 20 pc of the sun. The new revised catalog of local white dwarfs contains 122 entries (126 individual degenerate stars). The 20 pc sample is now estimated to be 80% complete. A space density of 0.0048 ± 0.0005 stars per cubic parsec is found. We find a mean mass for the local white dwarfs of 0.665 solar masses, a value larger than most other non-volume limited estimates. We also provide an updated fractional breakdown of the local white dwarf population in terms of binarity and spectral types.
This work was funded in part by NSF Grant AST 0507797.

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