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The Gemini NICI Planet-Finding Campaign: The Frequency of Giant Planets around Young B and A Stars

Published online by Cambridge University Press:  06 January 2014

Eric L. Nielsen
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu HI 96822, USA email: enielsen@ifa.hawaii.edu
Michael C. Liu
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu HI 96822, USA email: enielsen@ifa.hawaii.edu
Zahed Wahhaj
Affiliation:
European Southern Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile
Beth A. Biller
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
Thomas L. Hayward
Affiliation:
Gemini Observatory, Southern Operations Center, c/o AURA, Casilla 603, La Serena, Chile
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Abstract

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We have carried out high contrast imaging of 70 young, nearby B and A stars to search for brown dwarf and planetary companions as part of the Gemini NICI Planet-Finding Campaign. Our survey represents the largest, deepest survey for planets around high-mass stars (≈1.5–2.5 M) conducted to date and includes the planet hosts β Pic and Fomalhaut. Despite detecting two new brown dwarfs, our observations did not detect new planets around our target stars, and we present upper limits on the fraction of high-mass stars that can host giant planets that are consistent with our null result.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013 

References

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