WD 0346+246: A very low luminosity, cool degenerate in Taurus

N.C. Hambly, Stephen Smartt, S.T. Hodgkin

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42 Citations (Scopus)


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 similar to 3900 K). We discuss the relevance of this discovery to current research concerning Galactic structure and evolution.
Original languageEnglish
Pages (from-to)L157-L160
Number of pages4
JournalAstrophysical Journal
Publication statusPublished - 1997


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