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首页> 外文期刊>The Astrophysical journal >THE FREQUENCY OF HOT JUPITERS ORBITING NEARBY SOLAR-TYPE STARS*
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THE FREQUENCY OF HOT JUPITERS ORBITING NEARBY SOLAR-TYPE STARS*

机译:热流星体绕太阳型恒星运转的频率*

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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.
机译:我们根据利克(Lick)和凯克(Keck)行星搜索中的“加州行星调查”,确定了容纳热木星的太阳邻区中F,G和K矮星的比例。我们发现该比率为1.2%±0.38%,与Mayor等报道的比率一致。来自HARPS和CORALIE径向速度(RV)调查。这些数字是霍华德等人报道的比率的两倍以上。开普勒星和古尔德等人的比率。通过OGLE-III过境搜索;但是,由于统计数字少,这些差异仅具有边际统计意义。我们探讨了从现有RV数据集估算该比率并将RV比率与其他技术的比率进行比较时遇到的一些困难。

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