On the frequency of Jupiter analogs
Wittenmyer, R.; Tinney, C.G.; O'Toole, S.; Jones, H.R.A.; Butler, R.P.; Carter, B.D.; Bailey, J.
Citation: Wittenmyer , R , Tinney , C G , O'Toole , S , Jones , H R A , Butler , R P , Carter , B D & Bailey , J 2011 , ' On the frequency of Jupiter analogs ' The Astrophysical Journal , vol 727 , no. 2 , pp. 102-118 . DOI: 10.1088/0004-637X/727/2/102
The Anglo-Australian Planet Search has now accumulated 12 years of radial-velocity data with long-term instrumental precision better than 3 m s-1. 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 radialvelocity 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 and 6 AU.
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