The Transit Light Curve Project. IX. Evidence for a Smaller Radius of the Exoplanet XO-3b

Abstract

We present photometry of 13 transits of XO-3b, a massive transiting planet on an eccentric orbit. Previous data led to two inconsistent estimates of the planetary radius. Our data strongly favor the smaller radius, with increased precision: R_p = 1.217 +/- 0.073 R_Jup. A conflict remains between the mean stellar density determined from the light curve, and the stellar surface gravity determined from the shapes of spectral lines. We argue the light curve should take precedence, and revise the system parameters accordingly. The planetary radius is about 1 sigma larger than the theoretical radius for a hydrogen-helium planet of the given mass and insolation. To help in planning future observations, we provide refined transit and occultation ephemerides.

arXiv commentTo appear in ApJ [22 pages]

References in corpus (36)

• Cosmological parameters from SDSS and WMAP
• Analytic Lightcurves for Planetary Transit Searches
• Detection of Planetary Transits Across a Sun-like Star
• Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits
• On the Unique Solution of Planet and Star Parameters from an Extrasolar Planet Transit Light Curve
• Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture
• DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
• On detecting terrestrial planets with timing of giant planet transits
• Improved parameters for extrasolar transiting planets
• Quantifying the Uncertainty in the Orbits of Extrasolar Planets
• Evolution of "51Peg b-like" Planets
• Possible Solutions to the Radius Anomalies of Transiting Giant Planets
• Homogeneous studies of transiting extrasolar planets. I. Light curve analyses
• Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2
• Prospects for the Characterization and Confirmation of Transiting Exoplanets via the Rossiter-McLaughlin Effect
• WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE
• On the Radii of Extrasolar Giant Planets
• The Transit Light Curve (TLC) Project. I. Four Consecutive Transits of the Exoplanet XO-1b
• Heat transport in giant (exo)planets: a new perspective
• The XO Project: Searching for Transiting Extra-solar Planet Candidates
• XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary
• XO-3b: A Massive Planet in an Eccentric Orbit Transiting an F5V Star
• Doppler follow-up of OGLE transiting companions in the Galactic bulge
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• The Transit Light Curve Project. VII. The Not-So-Bloated Exoplanet HAT-P-1b
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• The Transit Light Curve (TLC) Project. II. Two Transits of the Exoplanet OGLE-TR-111b
• Hydrodynamic Simulations of Unevenly Irradiated Jovian Planets
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• A Possible Spin-Orbit Misalignment in the Transiting Eccentric Planet HD 17156b
• The Transit Light Curve Project. VI. Three Transits of the Exoplanet TrES-2
• Precise Radius Estimates for the Exoplanets WASP-1b and WASP-2b
• The Transit Light Curve Project. VIII. Six Occultations of the Exoplanet TrES-3
• The Centurion 18 telescope of the Wise Observatory

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