G 82-23 - A new subdwarf-white dwarf binary

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Binary Stars, Stellar Motions, Stellar Spectrophotometry, Subdwarf Stars, White Dwarf Stars, Astronomical Photometry, Blue Stars, Cool Stars, Stellar Color, Stellar Parallax

Scientific paper

Photometry and spectrophotometry of the proper motion star G 82-23 are
presented. A comparison with subdwarfs and white dwarfs in the same
range of temperature shows only partial agreement. If the parallax is
taken into account, the best explanation of this object seems to be a
binary structure with a K-subdwarf and a DC-white dwarf.

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