Discovery of a young planetary mass companion to the nearby M dwarf VHS J125601.92-125723.9

@article{Gauza2015DiscoveryOA,
  title={Discovery of a young planetary mass companion to the nearby M dwarf VHS J125601.92-125723.9},
  author={B. Gauza and V. S. B{\'e}jar and A. P{\'e}rez-Garrido and M. R. Z. Osorio and N. Lodieu and R. Rebolo and E. Pall'e and G. Nowak},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2015}
}
  • B. Gauza, V. S. Béjar, +5 authors G. Nowak
  • Published 2015
  • Physics
  • arXiv: Earth and Planetary Astrophysics
  • In a search for common proper motion companions using the VISTA Hemisphere Survey and 2MASS catalogs we have identified a very red (J-Ks=2.47 mag) late-L dwarf companion of a previously unrecognized M dwarf VHS J125601.92-125723.9, located at a projected angular separation of 8.06"+/-0.03". From low-resolution optical and near-IR spectroscopy we classified the primary and the companion as an M7.5+/-0.5 and L7+/-1.5, respectively. The primary shows weaker alkali lines than field dwarfs of… CONTINUE READING
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