The physical properties of white dwarf-main sequence binaries from SDSS

Details The physical properties of white dwarf-main sequence binaries from SDSS The physical properties of white dwarf-main sequence binaries from SDSS

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009jphcs.172a2025r&link_type=abstract

Journal of Physics: Conference Series, Volume 172, Issue 1, pp. 012025 (2009).

Physics

1

Scientific paper

We present a catalogue of 1596 white dwarf-main sequence binaries (WDMS) from the spectroscopic Sloan Digital Sky Survey Data Release 6 (SDSS DR6). We select WDMS binary candidates from template fitting all 1.27 million DR6 spectra, using combined constraints in both χ2 and signal-to-noise ratio (S/N). In addition, we use Galaxy Evolution Explorer (GALEX) and UKIRT Infrared Sky Survey (UKIDSS) magnitudes to search for objects in which one of the two components dominates the SDSS spectrum. We use a decomposition/fitting technique to measure the effective temperatures, surface gravities, masses and distances to the white dwarfs, as well as the spectral types and distances to the companions in our catalogue.

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