FURTHER DEFINING SPECTRAL TYPE "Y" AND EXPLORING THE LOW-MASS END OF THE FIELD BROWN DWARF MASS FUNCTION

@article{Kirkpatrick2012FURTHERDS,
  title={FURTHER DEFINING SPECTRAL TYPE "Y" AND EXPLORING THE LOW-MASS END OF THE FIELD BROWN DWARF MASS FUNCTION},
  author={J. Davy Kirkpatrick and Christopher Ryan Gelino and Michael C. Cushing and Gregory N. Mace and Roger L. Griffith and Michael F. Skrutskie and K A Marsh and Edward L. Wright and Peter Eisenhardt and Ian S. McLean and Amanda Kathryn Mainzer and Adam J. Burgasser and C. G.Tinney and Stephen Parker and Graeme S. Salter},
  journal={The Astrophysical Journal},
  year={2012},
  volume={753},
  pages={156}
}
We present the discovery of another seven Y dwarfs from the Wide-field Infrared Survey Explorer (WISE). Using these objects, as well as the first six WISE Y dwarf discoveries from Cushing et al., we further explore the transition between spectral types T and Y. We find that the T/Y boundary roughly coincides with the spot where the J-H colors of brown dwarfs, as predicted by models, turn back to the red. Moreover, we use preliminary trigonometric parallax measurements to show that the T/Y… 
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