Theoretical radii of transiting giant planets: The case of OGLE-TR-56b

被引：51

作者：

Burrows, A

Hubeny, I

Hubbard, WB

Sudarsky, D

Fortney, JJ

机构：

[1] Univ Arizona, Dept Astron, Tucson, AZ 85721 USA

[2] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[3] Natl Opt Astron Observ, Tucson, AZ 85726 USA

[4] Univ Arizona, Dept Planetary Sci, Lunar & Planetary Lab, Tucson, AZ 85721 USA

[5] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 610卷 / 01期

基金：

美国国家航空航天局;

关键词：

planetary systems; planets and satellites : general; stars : individual (OGLE-TR-56b);

D O I：

10.1086/423173

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate radius versus age trajectories for the photometrically selected transiting extrasolar giant planet, OGLE-TR-56b, and find agreement between theory and observation, without introducing an ad hoc extra source of heat in its core. The fact that the radius of HD 209458b seems larger than the radii of the recently discovered OGLE family of extremely close-in transiting planets suggests that HD 209458b is anomalous. Nevertheless, our good fit to OGLE-TR-56b bolsters the notion that the generic dependence of transit radii on stellar irradiation, mass, and age is, to within error bars, now quantitatively understood.

引用

页码：L53 / L56

页数：4

共 39 条

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