arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1607.04282astro-ph.EPastro-ph.SR
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双带碎片盘系统中看不见的行星

The unseen planets of double belt debris disk systems

Andrew Shannon, Amy Bonsor, Quentin Kral, Elisabeth Matthews

摘要:

两个组成碎片盘之间的间隙通常被认为是由介入的行星分散残余的星子而造成的。我们采用N体模拟来确定清除间隙所需的时间如何取决于间隙的位置和行星的质量。我们颠倒了这个关系,并提供了一个方程的最小行星质量,另一个预期数量的这样的行星,必须存在产生一个观察到的差距,为一个给定的年龄的恒星。我们展示了如何将其与直接成像非探测(如GPI或SPHERE)的行星系上限相结合,以产生行星系的近似知识。

英文摘要:

The gap between two component debris disks is often taken to be carved by intervening planets scattering away the remnant planetesimals. We employ N-body simulations to determine how the time needed to clear the gap depends on the location of the gap and the mass of the planets. We invert this relation, and provide an equation for the minimum planet mass, and another for the expected number of such planets, that must be present to produce an observed gap for a star of a given age. We show how this can be combined with upper limits on the planetary system from direct imaging non-detections (such as with GPI or SPHERE) to produce approximate knowledge of the planetary system.

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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