The Next Generation Sky Survey and the Quest for Cooler Brown Dwarfs

  title={The Next Generation Sky Survey and the Quest for Cooler Brown Dwarfs},
  author={J. Davy Kirkpatrick},
  journal={arXiv: Astrophysics},
The Next Generation Sky Survey (NGSS) is a proposed NASA MIDEX mission to map the entire sky in four infrared bandpasses - 3.5, 4.7, 12, and 23 um. The seven-month mission will use a 50-cm telescope and four-channel imager to survey the sky from a circular orbit above the Earth. Expected sensitivities will be half a million times that of COBE/DIRBE at 3.5 and 4.7 um and a thousand times that of IRAS at 12 and 23 um. NGSS will be particularly sensitive to brown dwarfs cooler than those presently… 

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