A Companion to the White Dwarf G261-43

Details A Companion to the White Dwarf G261-43 A Companion to the White Dwarf G261-43

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....113..764z&link_type=abstract

Astronomical Journal v.113, p.764

Astronomy and Astrophysics

Astronomy

3

White Dwarfs, Stars: Individual: G261-43

Scientific paper

Infrared images at wavelengths between 1 and 2.5 μm reveal that the nearby 16 000 K white dwarf, G261-43, has a companion located 1.4 arcsec (˜30 AU) away. The companion is, apparently, another white dwarf of temperature ˜5000 K. We estimate a difference of about 4 mag at V band. This suggests that infrared imaging with good image quality can be a useful method for discovering double white dwarfs where the components have significantly different temperatures and small separations.

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