Spectroscopic characterization of exoplanets' atmospheres

Details Spectroscopic characterization of exoplanets' atmospheres Spectroscopic characterization of exoplanets' atmospheres

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..479e&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.479

Computer Science

Scientific paper

The increasing number of exoplanets' detections by transit opens the possibility of characterizing their atmospheres in terms of thermal structure and composition, by using infrared spectroscopy at the time of primary and secondary transits. In the case of secondary transits, it is important, whenever possible, to measure both the reflected/scattered stellar component and the thermal emission simultaneously, in order to determine both the thermal profile and the vertical distributions of atmospheric species. It is also important to measure several bands of different intensities to probe the atmosphere at different altitude levels. This requires the simultaneous observation of the whole infrared range, ideally from 1 to 20 microns, with a spectral resolving power of a few tens to a few hundred. The EChO mission, preselected by ESA as a candidate for the Cosmic Vision M3 mission, is designed for this purpose.

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