On the Age and Binarity of Fomalhaut

@article{Mamajek2012OnTA,
  title={On the Age and Binarity of Fomalhaut},
  author={Eric E. Mamajek},
  journal={The Astrophysical Journal},
  year={2012},
  volume={754}
}
  • E. Mamajek
  • Published 27 June 2012
  • Geology, Physics
  • The Astrophysical Journal
The nearby (d = 7.7 pc) A3V star Fomalhaut is orbited by a resolved dusty debris disk and a controversial candidate extrasolar planet. The commonly cited age for the system (200 ± 100 Myr) from Barrado y Navascues et al. relied on a combination of isochronal age plus youth indicators for the K4V common proper-motion system TW PsA. TW PsA is 196 away from Fomalhaut and was first proposed as a companion by Luyten, but the physicality of the binarity is worth testing with modern data. I… 

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