WHY IS THERE A DEARTH OF CLOSE-IN PLANETS AROUND FAST-ROTATING STARS?

被引：40

作者：

Teitler, Seth ^{[1
]}

Koenigl, Arieh ^{[2
,3
]}

机构：

[1] Natl Acad Quiz Tournaments LLC, Shawnee, KS 66203 USA

[2] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[3] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

来源：

ASTROPHYSICAL JOURNAL | 2014年 / 786卷 / 02期

关键词：

planets and satellites: dynamical evolution and stability; planet-star interactions; stars: rotation; SOLAR-TYPE STARS; ANGULAR-MOMENTUM EVOLUTION; TIDAL EVOLUTION; HOT JUPITERS; ORBITAL EVOLUTION; STELLAR ROTATION; HOST STARS; KEPLER; SYSTEMS; EVAPORATION;

D O I：

10.1088/0004-637X/786/2/139

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose that the reported dearth of Kepler objects of interest (KOIs) with orbital periods P-orb less than or similar to 2-3 days around stars with rotation periods Prot less than or similar to 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.

引用

页数：8

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