A Near-Infrared, Wide-Field, Proper-Motion Search for Brown Dwarfs

  title={A Near-Infrared, Wide-Field, Proper-Motion Search for Brown Dwarfs},
  author={Joannah L. Hinz and Donald W. McCarthy, Jr. and Douglas A. Simons and Todd J. Henry and J. Davy Kirkpatrick and Patrick C. McGuire},
  journal={The Astronomical Journal},
  pages={2027 - 2032}
A common proper-motion survey of M dwarf stars within 8 pc of the Sun reveals no new stellar or brown dwarf companions at wide separations (∼100–1400 AU). This survey tests whether the brown dwarf "desert" extends to large separations around M dwarf stars and further explores the census of the solar neighborhood. The sample includes 66 stars north of -30° and within 8 pc of the Sun. Existing first-epoch images are compared with new J-band images of the same fields an average of 7 yr later to… 

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