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

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

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


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 languageEnglish (US)
Pages (from-to)L53-L56
JournalAstrophysical Journal
Issue number1 II
StatePublished - Jul 20 2004

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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


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