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THE GEMINI NICI PLANET-FINDING CAMPAIGN: DISCOVERY OF A SUBSTELLAR L DWARF COMPANION TO THE NEARBY YOUNG M DWARF CD? 35 2722Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Minist? rio da Ci? ncia e Tecnologia (Brazil) and Ministerio de Ciencia, Tecnolog? ae Innovaci? n Productiva (Argentina).

Authors
  • Zahed, Wahhaj
  • Michael C, Liu
  • Beth A, Biller
  • Fraser, Clarke
  • Eric Nielsen
  • Laird M, Close
  • Eric E, Mamajek
  • Michael, Cushing
  • Trent, Dupuy
  • Matthias, Tecza
  • Niranjan, Thatte
  • Mark, Chun
  • Christ, Ftaclas
  • Markus, Hartung
  • Neill, Reid
  • Evgenya L, Shkolnik
  • Silvia H P, Alencar
  • Pawel, Artymowicz
  • Alan, Boss
  • Elisabethe De Gouveia, Dal Pino
  • And 5 more
Type
Published Article
Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Publication Date
Feb 22, 2011
Volume
729
Issue
2
Pages
139–139
Source
SETI Institute
License
Unknown

Abstract

We present the discovery of a wide (67? AU) substellar companion to the nearby (21? pc) young solar-metallicity M1 dwarf CD? 35 2722, a member of the? 100? Myr AB Doradus association. Two epochs of astrometry from the NICI Planet-Finding Campaign confirm that CD? 35 2722? B is physically associated with the primary star. Near-IR spectra indicate a spectral type of L4? 1 with a moderately low surface gravity, making it one of the coolest young companions found to date. The absorption lines and near-IR continuum ...

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