EPJ Web of Conferences (Apr 2013)

Benchmark low-mass objects in Moving Groups

  • Burningham B.,
  • Barnes J.,
  • Jenkins J.S.,
  • Jones H.R.A.,
  • Pinfield D.J.,
  • Pavlenko Ya.V.,
  • Clarke J.R.A.,
  • Kuznetsov M.,
  • Gálvez-Ortiz M.C.,
  • Day-Jones A.C.,
  • Martín E.L.,
  • Pérez A.E. García,
  • Pokorny R.S.

DOI
https://doi.org/10.1051/epjconf/20134705007
Journal volume & issue
Vol. 47
p. 05007

Abstract

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In order to compile a sample of ultracool dwarfs that will serve as benchmarks for testing theoretical formation and evolutionary models, we selected low-mass cool (>M7) objects that are potentially members of five known young Moving Groups in the solar neighbourhood. We have studied the kinematics of the sample, finding that 49 targets belong to the young disk area, from which 36 are kinematic member of one of the five moving groups under study. Some of the identified low-mass members have been spectroscopically characterised (Teff, log g) and confirmed as young members through a detailed study of age indicators.