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Atmospheric composition and structure of HD209458b
2008
Proceedings of the International Astronomical Union
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AbstractTransiting planets like HD209458b offer a unique opportunity to scrutinize their atmospheric composition and structure. Transit spectroscopy probes the transition region between the day and night sides, called the limb. We present a re-analysis of existing HST/STIS transmission spectra of HD209458b's atmosphere. From these observations we identify H2 Rayleigh scattering, derive the absolute Sodium abundance and quantify its depletion in the upper atmosphere, extract a stratospheric T-P
doi:10.1017/s1743921308027117
fatcat:44hufp7a3vddvfrmpd677xlduq