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American Astronomical Society, Astrophysical Journal, 2(727), p. 102, 2011

DOI: 10.1088/0004-637x/727/2/102

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On the Frequency of Jupiter Analogs

Journal article published in 2010 by Robert A. Wittenmyer, Cg G. Tinney ORCID, Simon J. O'Toole ORCID, Hra R. A. Jones ORCID, Rp P. Butler, Bd D. Carter ORCID, and J. Bailey
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The Anglo-Australian Planet Search has now accumulated 12 years of radial-velocity data with long-term instrumental precision better than 3 m/s. In this paper, we expand on earlier simulation work, to probe the frequency of near-circular, long-period gas-giant planets residing at orbital distances of 3-6 AU -- the so-called "Jupiter analogs." We present the first comprehensive analysis of the frequency of these objects based on radial-velocity data. We find that 3.3% of stars in our sample host Jupiter analogs; detailed, star-by-star simulations show that no more than 37% of stars host a giant planet between 3-6 AU. ; Comment: ApJ accepted