Wright, J. T. and Marcy, G. W. and Howard, A. W. and Johnson, John Asher and Morton, T. D. and Fischer, D. A. (2012) The Frequency of Hot Jupiters Orbiting nearby Solar-type Stars. Astrophysical Journal, 753 (2). Art. No. 160. ISSN 0004-637X http://resolver.caltech.edu/CaltechAUTHORS:20120801-073313835
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We determine the fraction of F, G, and K dwarfs in the solar neighborhood hosting hot Jupiters as measured by the California Planet Survey from the Lick and Keck planet searches. We find the rate to be 1.2% ± 0.38%, which is consistent with the rate reported by Mayor et al. from the HARPS and CORALIE radial velocity (RV) surveys. These numbers are more than double the rate reported by Howard et al. for Kepler stars and the rate of Gould et al. from the OGLE-III transit search; however, due to small number statistics these differences are of only marginal statistical significance. We explore some of the difficulties in estimating this rate from the existing RV data sets and comparing RV rates to rates from other techniques.
|Additional Information:||© 2012 American Astronomical Society. Received 2011 December 27; accepted 2012 May 10; published 2012 June 25. Based on observations obtained at the W. M. Keck Observatory, which is operated jointly by the University of California and the California Institute of Technology. This work was partially supported by funding from the Center for Exoplanets and Habitable Worlds, which is supported by the Pennsylvania State University, the Eberly College of Science, and the Pennsylvania Space Grant Consortium. The work herein is based on observations obtained at the W. M. Keck Observatory, which is operated jointly by the University of California and the California Institute of Technology. The Keck Observatory was made possible by the generous financial support of the W. M. Keck Foundation. We wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Mauna Kea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. This research has made use of the Exoplanet Orbit Database and the Exoplanet Data Explorer at exoplanets.org. Facility: Keck:I|
|Subject Keywords:||planetary systems; techniques: radial velocities|
|Official Citation:||The Frequency of Hot Jupiters Orbiting nearby Solar-type Stars J. T. Wright et al. 2012 ApJ 753 160|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||01 Aug 2012 15:47|
|Last Modified:||26 Dec 2012 15:46|
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