We propose that the reported dearth of Kepler objects of interest (KOIs) with orbital periods P orb 2-3?days around stars with rotation periods P rot 5-10?days can be attributed to tidal ingestion of close-in planets by their host stars. We show that the planet distribution in this region of the log P orb-log P rot plane is qualitatively reproduced with a model that incorporates tidal interaction and magnetic braking as well as the dependence on the stellar core-envelope coupling timescale. We demonstrate the consistency of this scenario with the inferred break in the P orb distribution of close-in KOIs and point out a potentially testable prediction of this interpretation.
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机译:我们建议,报告的开普勒感兴趣的目标(KOIs)的缺乏,其轨道周期为P球,旋转周期为P rot 5-10天,绕星体2-3天,可以归因于它们的宿主潮汐摄入近距离行星星。我们显示,通过结合潮汐相互作用和电磁制动以及对恒星芯-包络耦合时标的依赖关系的模型,定性地再现了log P orb-log P腐烂平面这一区域的行星分布。我们用推断的近距离KOI的P球分布证明了这种情况的一致性,并指出了这种解释的潜在可测试的预测。
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