WD 0346+246: A Very Low Luminosity, Cool Degenerate in Taurus

Details WD 0346+246: A Very Low Luminosity, Cool Degenerate in Taurus WD 0346+246: A Very Low Luminosity, Cool Degenerate in Taurus

Nov 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...489l.157h&link_type=abstract

Astrophysical Journal Letters v.489, p.L157

Astronomy and Astrophysics

Astronomy

41

Galaxy: Stellar Content, Stars: Individual Alphanumeric: Wd 0346+246, Stars: White Dwarfs

Scientific paper

We report the serendipitous discovery of a new, very low luminosity, cool degenerate in the region of Taurus. The object was found as a very high proper-motion star ( mu = 1."3 yr-1) on seven I-band UK Schmidt Telescope plates, dating from 1987 to 1994, via digitized scans from the new, fast, high-precision microdensitometer SuperCOSMOS. Photometry and spectrophotometry indicate that the object has a temperature comparable to those of the handful of coolest white dwarfs currently known ( T~3900 K). We discuss the relevance of this discovery to current research concerning Galactic structure and evolution.

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