Conference Paper

A Young Planetary Mass Companion to the Nearby M Dwarf VHS J125601.92-125723.9

  • B. Gauza /
  • V. J S Béjar /
  • A. Pérez-Garrido /
  • M. R Zapatero Osorio /
  • N. Lodieu /
  • R. Rebolo /
  • E. Pallé /
  • G. Nowak
Book Series cp
Proceedings of the International Astronomical Union
  • Volumen: 10
  • Fecha: 01 January 2015
  • Páginas: 232-236
  • ISSN: 17439221 17439213
  • Source Type: Book Series
  • DOI: 10.1017/S1743921315006493
  • Document Type: Conference Paper
  • Publisher: Cambridge University PressJournals_subscriptions@cup.cam.ac.uk
© 2016 International Astronomical Union.We have recently identified a young, very red (J¿Ks = 2.47 mag) late L-type companion at 8.06 ± 0.03 (~102 AU) from a previously unrecognized M dwarf. We determined the parallactic distance of the system to be 12.7±1.0 pc. Non-detection of lithium and the kinematics of the primary allowed us to constrain the age of the system in the range of 150-300 Myr. By comparison with theoretical evolutionary models we derived a mass of 73+20-15 M Jup for the primary, at around the substellar mass regime and 11.2+9.7-1.8 M Jup for the secondary, near the deuterium burning mass limit.

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