The Transit Light Curve Project. II. Two Transits of the Exoplanet OGLE-TR-111b
作者： Joshua Nathan Winn , Matthew J. Holman , Cesar I. Fuentes
DOI: 10.1086/509658
关键词: Transit (astronomy) 、 Light curve 、 Physics 、 Astrophysics 、 Orbital period 、 Radius 、 Exoplanet 、 Astronomy 、 Stellar mass 、 Photometry (astronomy) 、 Planetary system
摘要: As part of our ongoing effort to measure exoplanet sizes and transit times with greater accuracy, we present I-band observations two transits OGLE-TR-111b. The photometry has an accuracy 0.15%-0.20% a cadence 1-2 minutes. We derive planetary radius RP = 1.067 ± 0.054RJup stellar RS 0.831 0.031 R⊙. uncertainties are dominated by errors in the rather than systematic arising from limb-darkening function or mass. Both agreement theoretical expectations. accurate within 30 s allow us refine estimate mean orbital period: 4.0144479 0.0000041 days.
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