The evolution of irradiated planets. Application to transits - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue The Astrophysical Journal Année : 2004

The evolution of irradiated planets. Application to transits

Résumé

Extending the theory we derived recently for HD209458b to different cases of strongly irradiated gaseous exoplanets, we have calculated the consistent evolution of the new transiting planet, OGLE-TR-56b, for its recently revised mass determination. The theory is shown to successfully reproduce the observed radius, for the proper age of the system. We also examine the dissipation of kinetic energy at the planet\'s internal adiabat due to atmospheric winds, and place constraints on the efficiency of this process. We show that a fraction $\\sim 0.1$ -- 0.5% of the incident flux transformed into thermal energy deposited at the adiabatic level can accommodate the observed radii of both OGLE-TR-56b and HD209458b. The present theory yields quantitative predictions on the evolution of the emergent spectrum and fundamental properties of hot-jupiters. The predictions for radius, luminosity, temperature as a function of the planet\'s mass and orbital distance can be used as benchmarks for future detections of transit planets.

Dates et versions

hal-00014532 , version 1 (27-11-2005)

Identifiants

Citer

Gilles Chabrier, T. Barman, Isabelle Baraffe, France Allard, P. Hauschildt. The evolution of irradiated planets. Application to transits. The Astrophysical Journal, 2004, 603, pp.L53-L56. ⟨hal-00014532⟩
34 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More