CONFIRMATION OF HOT JUPITER KEPLER-41b VIA PHASE CURVE ANALYSIS

Quintana, Elisa V.; Rowe, Jason F.; Barclay, Thomas; Howell, Steve B.; Ciardi, David R.; Demory, Brice-Olivier; Caldwell, Douglas A.; Borucki, William J.; Christiansen, Jessie L.; Jenkins, Jon M.; Klaus, Todd C.; Fulton, Benjamin J.; Morris, Robert L.; Sanderfer, Dwight T.; Shporer, Avi; Smith, Jeffrey C.; Still, Martin; Thompson, Susan E. (2013). CONFIRMATION OF HOT JUPITER KEPLER-41b VIA PHASE CURVE ANALYSIS. Astrophysical journal, 767(2), p. 137. Institute of Physics Publishing IOP 10.1088/0004-637x/767/2/137

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We present high precision photometry of Kepler-41, a giant planet in a 1.86 day orbit around a G6V star that was recently confirmed through radial velocity measurements. We have developed a new method to confirm giant planets solely from the photometric light curve, and we apply this method herein to Kepler-41 to establish the validity of this technique. We generate a full phase photometric model by including the primary and secondary transits, ellipsoidal variations, Doppler beaming, and reflected/emitted light from the planet. Third light contamination scenarios that can mimic a planetary transit signal are simulated by injecting a full range of dilution values into the model, and we re-fit each diluted light curve model to the light curve. The resulting constraints on the maximum occultation depth and stellar density combined with stellar evolution models rules out stellar blends and provides a measurement of the planet's mass, size, and temperature. We expect about two dozen Kepler giant planets can be confirmed via this method.

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