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THE GEMINI/NICI PLANET-FINDING CAMPAIGN: THE FREQUENCY OF PLANETS AROUND YOUNG MOVING GROUP STARSBased 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), Ministério da Ciência e Tecnologia (Brazil) and Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina).

Authors
  • Beth A, Biller
  • Michael C, Liu
  • Zahed, Wahhaj
  • Eric Nielsen
  • Thomas L, Hayward
  • Jared R, Males
  • Andrew, Skemer
  • Laird M, Close
  • Mark, Chun
  • Christ, Ftaclas
  • Fraser, Clarke
  • Niranjan, Thatte
  • Evgenya L, Shkolnik
  • Neill, Reid
  • Markus, Hartung
  • Alan, Boss
  • Douglas, Lin
  • Silvia H P, Alencar
  • Elisabete De Gouveia, Dal Pino
  • Jane, Gregorio-Hetem
  • And 1 more
Type
Published Article
Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Publication Date
Oct 23, 2013
Volume
777
Issue
2
Pages
160–160
Source
SETI Institute
License
Unknown

Abstract

We report results of a direct imaging survey for giant planets around 80 members of the β Pic, TW Hya, Tucana-Horologium, AB Dor, and Hercules-Lyra moving groups, observed as part of the Gemini/NICI Planet-Finding Campaign. For this sample, we obtained median contrasts of ΔH= 13.9 mag at 1 in combined CH 4 narrowband ADI+ SDI mode and median contrasts of ΔH= 15.1 mag at 2 in H-band ADI mode. We found numerous (> 70) candidate companions in our survey images. Some of these candidates were rejected as ...

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