On the Frequency of Jupiter Analogs
Wittenmyer, Robert A. · Tinney, C. G. · O'Toole, Simon J. · Jones, H. R. A. · Butler, R. P. · Carter, B. D. · Bailey, J.
Original · EN
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.
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