GALEX Search for Praesepe's White Dwarfs in Sirius Like Binary Systems

Details GALEX Search for Praesepe's White Dwarfs in Sirius Like Binary Systems GALEX Search for Praesepe's White Dwarfs in Sirius Like Binary Systems

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..372..103b&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

We present preliminary results from a GALEX far-ultraviolet imaging survey of the Praesepe open cluster to identify the complete white dwarf population via detection of a far-UV excess in the cluster main sequence. Such an excess exhibited in stars of spectral types K and earlier is indicative of binarity with an unresolved white dwarf companion. Finding the complete white dwarf population is of vital importance in constraining the initial mass--final mass relation for white dwarfs and the cluster's initial mass function.

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