Spectrum and atmosphere models of irradiated transiting extrasolar giant planets
arXiv:0807.3588 · doi:10.1017/S1743921308026458
Abstract
We show that a consistent fit to observed secondary eclipse data for several strongly irradiated transiting planets demands a temperature inversion (stratosphere) at altitude. Such a thermal inversion significantly influences the planet/star contrast ratios at the secondary eclipse,their wavelength dependences, and, importantly, the day-night flux contrast during a planetary orbit. The presence of the thermal inversion/stratosphere seems to roughly correlate with the stellar flux at the planet. Such temperature inversions might caused by an upper-atmosphere absorber whose exact nature is still uncertain
arXiv comment7 pages, 3 figures. To appear in the Proceedings of the 253rd IAU Symposium: "Transiting Planets", May 2008, Cambridge, MA
References in corpus (22)
- A Non-Gray Theory of Extrasolar Giant Planets and Brown Dwarfs
- A Unified Theory for the Atmospheres of the Hot and Very Hot Jupiters: Two Classes of Irradiated Atmospheres
- Detection of Thermal Emission from an Extrasolar Planet
- Infrared radiation from an extrasolar planet
- Chemical Equilibrium Abundances in Brown Dwarf and Extrasolar Giant Planet Atmospheres
- A Possible Bifurcation in Atmospheres of Strongly Irradiated Stars and Planets
- The 3.6-8.0 Micron Broadband Emission Spectrum of HD 209458b: Evidence for an Atmospheric Temperature Inversion
- Atomic and Molecular Opacities for Brown Dwarf and Giant Planet Atmospheres
- Albedo and Reflection Spectra of Extrasolar Giant Planets
- Theoretical Spectra and Light Curves of Close-in Extrasolar Giant Planets and Comparison with Data
- Theoretical Spectra and Atmospheres of Extrasolar Giant Planets
- Theoretical Spectral Models of the Planet HD 209458b with a Thermal Inversion and Water Emission Bands
- Using Stellar Limb-Darkening to Refine the Properties of HD 209458b
- Strong Infrared Emission from the Extrasolar Planet HD189733b
- A Spectrum of an Extrasolar Planet
- Atmosphere, Interior, and Evolution of the Metal-Rich Transiting Planet HD 149026b
- Extrasolar Giant Planets under Strong Stellar Irradiation
- Irradiated Planets
- Theory for the Secondary Eclipse Fluxes, Spectra, Atmospheres, and Light Curves of Transiting Extrasolar Giant Planets
- Spectra and Diagnostics for the Direct Detection of Wide-Separation Extrasolar Giant Planets
- Infrared Observations During the Secondary Eclipse of HD 209458 b II. Strong Limits on the Infrared Spectrum Near 2.2 Microns
- Theoretical Interpretation of the Measurements of the Secondary Eclipses of TrES-1 and HD209458b