Near - infrared photometry and spectroscopy of L and T dwarfs: The Effects of temperature, clouds, and gravity

@article{Knapp2004NearI,
  title={Near - infrared photometry and spectroscopy of L and T dwarfs: The Effects of temperature, clouds, and gravity},
  author={Gillian Knapp and Sandy K. Leggett and X. Fan and Mark S. Marley and T. R. Geballe and David A. Golimowski and et al.},
  journal={The Astronomical Journal},
  year={2004},
  volume={127},
  pages={3553-3578}
}
We present new JHK photometry on the MKO-NIR system and JHK spectroscopy for a large sample of L and T dwarfs. Photometry has been obtained for 71 dwarfs, and spectroscopy for 56. The sample comprises newly identified very red objects from the Sloan Digital Sky Survey (SDSS) and known dwarfs from the SDSS and the Two Micron All Sky Survey (2MASS). Spectral classification has been carried out using four previously defined indices from Geballe et al. that measure the strengths of the near… 
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