The Oblateness of Exoplanets: New Techniques and Empirical Results

Details The Oblateness of Exoplanets: New Techniques and Empirical Results The Oblateness of Exoplanets: New Techniques and Empirical Results

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21534904c&link_type=abstract

American Astronomical Society, AAS Meeting #215, #349.04; Bulletin of the American Astronomical Society, Vol. 42, p.531

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We present two new approaches to the problem of measuring (or bounding) the oblateness of a transiting exoplanet. First, we present a computationally efficient method for calculating the light curves of transits by oblate planets, and use existing data to place the first meaningful empirical constraints on the oblateness of a "hot Jupiter." Second, we describe a new channel for detecting the signature of an oblate and oblique planet, based on changes in the transit depth that are caused by spin precession.

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