The Brown Dwarf Kinematics Project (BDKP. III. Parallaxes for 70 Ultracool Dwarfs

@article{Faherty2012TheBD,
  title={The Brown Dwarf Kinematics Project (BDKP. III. Parallaxes for 70 Ultracool Dwarfs},
  author={J. Faherty and A. Burgasser and F. Walter and N. V. D. Bliek and M. Shara and K. Cruz and A. West and F. Vrba and G. Anglada-Escud},
  journal={The Astrophysical Journal},
  year={2012},
  volume={752},
  pages={56}
}
We report parallax measurements for 70 ultracool dwarfs (UCDs) including 11 late-M, 32 L, and 27 T dwarfs. In this sample, 14 M and L dwarfs exhibit low surface gravity features, 6 are close binary systems, and 2 are metal-poor subdwarfs. We combined our new measurements with 114 previously published UCD parallaxes and optical-mid-IR photometry to examine trends in spectral-type/absolute magnitude, and color-color diagrams. We report new polynomial relations between spectral type and MJHK… Expand
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