Albus 1: A Very Bright White Dwarf Candidate

Details Albus 1: A Very Bright White Dwarf Candidate Albus 1: A Very Bright White Dwarf Candidate

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...665l.151c&link_type=abstract

The Astrophysical Journal, Volume 665, Issue 2, pp. L151-L154.

Astronomy and Astrophysics

Astronomy

11

Galaxy: Solar Neighborhood, Stars: Subdwarfs, Stars: White Dwarfs

Scientific paper

We have serendipitously discovered a previously unknown, bright source (BT=11.75+/-0.07 mag) with a very blue VT-Ks color, which we have named Albus 1. A photometric and astrometric study using Virtual Observatory tools has shown that it possesses an appreciable proper motion and magnitudes and colors very similar to those of the well-known white dwarf G191-B2B. We consider Albus 1 as a DA-type white dwarf located at about 40 pc. If its nature is confirmed, Albus 1 would be the sixth brightest isolated white dwarf in the sky, which would make it an excellent spectrophotometric standard.

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