WASP-1b: A Direct Glimpse into the Atmosphere of a Hot Jupiter

Details WASP-1b: A Direct Glimpse into the Atmosphere of a Hot Jupiter WASP-1b: A Direct Glimpse into the Atmosphere of a Hot Jupiter

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007noao.prop..506h&link_type=abstract

NOAO Proposal ID #2007A-0506

Physics

Scientific paper

The SuperWASP project has just discovered an extremely promising target for reflected light observations (Collier Cameron et al. 2006). WASP-2b, with its small orbital period P_orb=2.152226 days and large radius R_p=1.028+/- 0.046 R_J, has a reflected light signal, F_p/F_*=(2.64 +/- 0.25) × 10^-4 p_(lambda) Φ_(lambda)((alpha)), that is double that of HD 209458b for the same phase function and geometric albedo. Therefore, we propose to obtain high-precision photometry with SOAR and the SOI, near times of three secondary eclipses of WASP-2b, to make the first detection of reflected light from an extrasolar planet. A lack of detection during photometric conditions will imply a 1-sigma upper limit on the geometric albedo of 0.11, stronger than that for HD 209458b obtained by the MOST satellite (Rowe et al. 2006).

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