FORS2 and HAWKI photometry of CoRoT-1 (Gillon+, 2009)

Details FORS2 and HAWKI photometry of CoRoT-1 (Gillon+, 2009) FORS2 and HAWKI photometry of CoRoT-1 (Gillon+, 2009)

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ycat..35060359g&link_type=abstract

VizieR On-line Data Catalog: J/A+A/506/359. Originally published in: 2009A&A...506..359G

Physics

Binaries: Eclipsing, Planets, Photometry

Scientific paper

We present VLT eclipse photometry for the giant planet CoRoT-1b. We observed a transit in the R-band filter and an occultation in a narrow filter centered on 2.09{mu}m. Our analysis of this new photometry and published radial velocities, in combination with stellar-evolutionary modeling, leads to a planetary mass and radius of 1.07+0.13-0.18M{Jup} and 1.45+0.07-0.13R_{Jup}, confirming the very low density previously deduced from CoRoT photometry. The large occultation depth that we measure at 2.09{mu}m (0.2780.043-0.066% ) is consistent with thermal emission and is better reproduced by an atmospheric model with no redistribution of the absorbed stellar flux to the night side of the planet.
(2 data files).

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