A time-dependent radiative model of HD 209458b
نویسندگان
چکیده
منابع مشابه
Atmospheric Circulation of Hot Jupiters: Coupled Radiative-dynamical General Circulation Model Simulations of Hd 189733b and Hd 209458b
We present global, three-dimensional numerical simulations of HD 189733b and HD 209458b that couple the atmospheric dynamics to a realistic representation of non-gray cloud-free radiative transfer. The model, which we call the Substellar and Planetary Atmospheric Radiation and Circulation (SPARC) model, adopts the MITgcm for the dynamics and uses the radiative model of McKay, Marley, Fortney, a...
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Atomic hydrogen loss at the top of HD 209458b’s atmosphere has been recently suggested (Vidal-Madjar et al.). We have developed a one-dimensional model to study the chemistry in the upper atmosphere of this extrasolar “hot Jupiter.” The three most abundant elements (other than He) as well as four parent molecules are included in this model, viz., H, C, O, H2, CO, H2O, and CH4. The higher temper...
متن کاملDynamic Meteorology at the Photosphere of Hd 209458b
We calculate the meteorology of the close-in transiting extrasolar planet HD 209458b using a global, threedimensional atmospheric circulation model. Dynamics are driven by perpetual irradiation of one hemisphere of this tidally locked planet. The simulation predicts global temperature contrasts of ∼500 K at the photosphere and the development of a steady superrotating jet. The jet extends from ...
متن کاملSYSTEM PARAMETERS OF THE TRANSITING EXTRASOLAR PLANET HD 209458b
We derive improved system parameters for the HD 209458 system using a model that simultaneously fits both photometric transit and radial velocity observations. The photometry consists of previous Hubble Space Telescope STIS and FGS observations, 12 I-band transits observed between 2001 and 2003 with the Mount Laguna Observatory 1 m telescope, and six Strömgren bþ y transits observed between 200...
متن کاملTHE MID-INFRARED SPECTRUM OF THE TRANSITING EXOPLANET HD 209458b
We report the spectroscopic detection of mid-infrared emission from the transiting exoplanet HD 209458b. Using archive data taken with the Spitzer IRS instrument, we have determined the spectrum of HD 209458b between 7.46 and 15.25 m. We have used two independent methods to determine the planet spectrum, one differential in wavelength and one absolute, and find the results are in good agreement...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2005
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20048344