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arXiv 0912.2585astro-ph.EPastro-ph.IM
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太阳系外行星的基本质量-周期函数

On the Fundamental Mass-Period Functions of Extrasolar Planets

Ing-Guey Jiang, Li-Chin Yeh, Yen-Chang Chang, Wen-Liang Hung

摘要:

利用多普勒频移方法探测到的175颗太阳系外行星,我们构造了独立和耦合的质量-周期函数。在耦合质量-周期函数中首次考虑了选择效应。我们的结果与Tabachnik和Tremaine(2002)的结果是一致的,主要区别在于我们得到了一个更平坦的质量函数,但周期函数更陡。此外,我们的耦合质量周期函数显示,大约2.5%的恒星将拥有一颗质量介于地球质量和海王星质量之间的行星,大约3%的恒星将拥有一颗质量介于海王星质量和木星质量之间的行星。

英文摘要:

Employing a catalog of 175 extrasolar planets (exoplanets) detected by the Doppler-shift method, we constructed the independent and coupled mass-period functions. It is the first time in this field that the selection effect is considered in the coupled mass-period functions. Our results are consistent with those in Tabachnik and Tremaine (2002) with the major differences that we obtain a flatter mass function but a steeper period function. Moreover, our coupled mass-period functions show that about 2.5 percent of stars would have a planet with mass between Earth Mass and Neptune Mass, and about 3 percent of stars would have a planet with mass between Neptune Mass and Jupiter Mass.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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