SDSS DR4: Hot White Dwarf Luminosity Function

Details SDSS DR4: Hot White Dwarf Luminosity Function SDSS DR4: Hot White Dwarf Luminosity Function

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..372...65k&link_type=abstract

15th European Workshop on White Dwarfs ASP Conference Series, Vol. 372, proceedings of the conference held 7-11 August, 2006 in

Astronomy and Astrophysics

Astronomy

Scientific paper

A large, nearly complete, magnitude-limited, spectroscopically-identified sample of hot white dwarf stars presented in the Sloan Digital Sky Survey (SDSS) Data Release 4 White Dwarf Catalog tep{p8_eis06} allowed us to construct the hot end of a SDSS white dwarf luminosity function (LF). The LF covers an approximate temperature range of 23,000 K to 100,000 K and is based on the distances and absolute bolometric magnitudes determined from stellar models. The sample is dominated by DA type white dwarfs, but it also contains DB, DAO, DO and PG 1159 type stars. We present our new LF, compare it to previous work tep{p8_har06}, and comment on sample completeness.

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