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Absolute properties of the low-mass eclipsing binary CM Draconis
J. C. Morales, I. Ribas, C. Jordi +12
Spectroscopic and eclipsing binary systems offer the best means for determining accurate physical properties of stars, including their masses and radii. The data available for low-…
A New Spectroscopic and Photometric Analysis of the Transiting Planet Systems TrES-3 and TrES-4
A. Sozzetti, G. Torres, D. Charbonneau +17
We report new spectroscopic and photometric observations of the parent stars of the recently discovered transiting planets TrES-3 and TrES-4. A detailed abundance analysis based on…
The Transit Light Curve Project. IX. Evidence for a Smaller Radius of the Exoplanet XO-3b
Joshua N. Winn, Matthew J. Holman, Guillermo Torres +9
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…
The Transit Light Curve Project. VIII. Six Occultations of the Exoplanet TrES-3
Joshua N. Winn, Matthew J. Holman, Avi Shporer +5
We present photometry of the exoplanet host star TrES-3 spanning six occultations (secondary eclipses) of its giant planet. No flux decrements were detected, leading to 99%-confide…
Multi-Wavelength Constraints on the Day-Night Circulation Patterns of HD 189733b
Heather A. Knutson, David Charbonneau, Nicolas B. Cowan +6
We present new Spitzer observations of the phase variation of the hot Jupiter HD 189733b in the MIPS 24 micron bandpass, spanning the same part of the planet's orbit as our previou…
TrES-4: A Transiting Hot Jupiter of Very Low Density
Georgi Mandushev, Francis T. O'Donovan, David Charbonneau +12
We report the discovery of TrES-4, a hot Jupiter that transits the star GSC 02620-00648 every 3.55 days. From high-resolution spectroscopy of the star we estimate a stellar effecti…