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

A. Burrows; I. Hubeny; W. B. Hubbard; D. Sudarsky; J. J. Fortney

doi:10.1086/423173

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

A. Burrows, I. Hubeny, W. B. Hubbard, D. Sudarsky, J. J. Fortney

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51 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	L53-L56
Journal	Astrophysical Journal
Volume	610
Issue number	1 II
DOIs	https://doi.org/10.1086/423173
State	Published - Jul 20 2004

Keywords

Planetary systems
Planets and satellites: general
Stars: individual (OGLE-TR-56b)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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title = "Theoretical radii of transiting giant planets: The case of OGLE-TR-56b",

abstract = "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.",

keywords = "Planetary systems, Planets and satellites: general, Stars: individual (OGLE-TR-56b)",

author = "A. Burrows and I. Hubeny and Hubbard, {W. B.} and D. Sudarsky and Fortney, {J. J.}",

note = "Funding Information: We thank Christopher Sharp, Dimitar Sasselov, Adam Showman, Jonathan Lunine, Dave Charbonneau, and Drew Milsom for useful discussions during the course of this investigation. This study was supported in part by NASA grants NAG5-10760 and NAG5-13775. This material is based on work supported by the National Aeronautics and Space Administration through the NASA Astrobiology Institute under Cooperative Agreement CAN-02-OSS-02 issued through the Office of Space Science.",

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T2 - The case of OGLE-TR-56b

AU - Burrows, A.

AU - Hubeny, I.

AU - Hubbard, W. B.

AU - Sudarsky, D.

AU - Fortney, J. J.

N1 - Funding Information: We thank Christopher Sharp, Dimitar Sasselov, Adam Showman, Jonathan Lunine, Dave Charbonneau, and Drew Milsom for useful discussions during the course of this investigation. This study was supported in part by NASA grants NAG5-10760 and NAG5-13775. This material is based on work supported by the National Aeronautics and Space Administration through the NASA Astrobiology Institute under Cooperative Agreement CAN-02-OSS-02 issued through the Office of Space Science.

PY - 2004/7/20

Y1 - 2004/7/20

N2 - 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.

AB - 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.

KW - Planetary systems

KW - Planets and satellites: general

KW - Stars: individual (OGLE-TR-56b)

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