Twelve Consecutive Transits of GJ1214b in 20 Days of Continuous Observations by Spitzer

Details Twelve Consecutive Transits of GJ1214b in 20 Days of Continuous Observations by Spitzer Twelve Consecutive Transits of GJ1214b in 20 Days of Continuous Observations by Spitzer

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.1703d&link_type=abstract

American Astronomical Society, ESS meeting #2, #17.03

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Scientific paper

From 29 April until 19 May, 2011, the Spitzer Space Telescope executed a continuous time series observation of the transiting super-Earth GJ1214b at a wavelength of 4.5 microns. The goals of this program are: 1) to search for transits of other planets to the outer edge of the habitable zone in this system, 2) to achieve a sensitive search for the secondary eclipse, and 3) to improve the precision of the transit parameters for GJ1214b. In this work we describe the results from goal 3, the transit analysis. Observations of twelve transits will not only improve the precision of the planet's radius significantly, but may also help discriminate between hydrogen-rich and hydrogen-poor models of the planetary atmosphere.

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