A low-temperature companion to a white dwarf star

  title={A low-temperature companion to a white dwarf star},
  author={Eric Edward Becklin and Ben Zuckerman},
We have discovered an infrared object located about 120 AU from the white dwarf GD165. With the exception of the possible brown dwarf companion to Giclas 29–38 which we reported last year1, the companion to GD165 is the coolest (2,100 K) dwarf star ever reported and, according to some theoretical models, it should be a sub-stellar brown dwarf with a mass between 0.06 and 0.08 solar masses. These results, together with newly discovered low-mass stellar companions to white dwarfs, change the… 

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