An Upper Limit on the Albedo of HD 209458b: Direct Imaging Photometry with theMOSTSatellite
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چکیده
منابع مشابه
An Upper Limit on the Albedo of HD 209458b: Direct Imaging Photometry with the MOST Satellite
We present space-based photometry of the transiting exoplanetary system HD 209458 obtained with the MOST (Microvariablity and Oscillations of STars) satellite, spanning 14 days and covering 4 transits and 4 secondary eclipses. The HD 209458 photometry was obtained in MOST’s lower-precision Direct Imaging mode, which is used for targets in the brightness range 6.5 ≥ V ≥ 13. We describe the photo...
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We report infrared photometry of the extrasolar planet HD209458b during the time of secondary eclipse (planet passing behind the star). Observations were acquired during two secondary eclipses at the NASA Infrared Telescope Facility (IRTF) in September 2003. We used a circular variable filter (1.5% bandpass) centered at 3.8 μm to isolate the predicted flux peak of the planet at this wavelength....
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We calculate a new suite of albedo models for close-in extrasolar giant planets and compare with the recent stringent upper limit for HD 209458b of Rowe et al. using MOST. We find that all models without scattering clouds are consistent with this optical limit. We explore the dependence on wavelength and waveband, metallicity, the degree of heat redistribution, and the possible presence of ther...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2006
ISSN: 0004-637X,1538-4357
DOI: 10.1086/504252