The Ultra Cool Brown Dwarf Companion of WD 0806-661B: Age, Mass, and Formation Mechanism

@article{Rodrguez2011TheUC,
  title={The Ultra Cool Brown Dwarf Companion of WD 0806-661B: Age, Mass, and Formation Mechanism},
  author={D. Rodr{\'i}guez and B. Zuckerman and C. Melis and I. Song},
  journal={The Astrophysical Journal},
  year={2011},
  volume={732}
}
  • D. Rodríguez, B. Zuckerman, +1 author I. Song
  • Published 2011
  • Physics
  • The Astrophysical Journal
  • We have combined multi-epoch images from the Infrared Side Port Imager on the CTIO 4 m telescope to derive a 3σ limit of J = 21.7 for the ultra cool brown dwarf companion to WD 0806-661 (GJ 3483). We find that J – [4.5] > 4.95, redder than any other brown dwarf known to date. With theoretical evolutionary models and ages 1.5-2.7 Gyr, we estimate the brown dwarf companion to have mass <10-13 M Jup and temperature 400 K, providing evidence that this is among the coolest brown dwarfs currently… CONTINUE READING

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