Direct Study of Exoplanet Thermal Emission

Details Direct Study of Exoplanet Thermal Emission Direct Study of Exoplanet Thermal Emission

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop20523c&link_type=abstract

Spitzer Proposal ID #20523

Physics

Scientific paper

We propose to observe two transiting exoplanet systems during predicted times of secondary eclipse, corresponding to the passage of the planet behind the star. This program builds on the success of our Director's Discretionary program, in which we demonstrated the use of Spitzer/IRAC as an ultra-precise spectrophotometer, and directly detected the thermal emission from an extrasolar planet. The primary observational product of the current proposal will be the flux measurement of the planetary emission for each planet in each of the 4 IRAC bands. These observations will truly inaugurate the era of remote sensing of extrasolar planets, and directly constrain models of the planetary atmospheres. Moreover, high-cadence observations of one system during ingress and egress will allow us to spatially resolve the planetary emission over the planetary surface, providing an unprecedented probe of the dynamics of these strongly irradiated exoplanet atmospheres.

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