Joshua N. Winn et al. 2007 ApJ 657 1098 doi:10.1086/510834
The Transit Light Curve Project. III. Tres Transits of TrES-1
FREE ISSUEJoshua N. Winn1, Matthew J. Holman2 and Anna Roussanova1
Show affiliationsWe present z-band photometry of three consecutive transits of the exoplanet TrES-1, with an accuracy of 0.15% and a cadence of 40 s. We improve on estimates of the system parameters, finding in particular that the planetary radius is 1.081 ± 0.029 RJup and the stellar radius is 0.811 ± 0.020 R
. The uncertainties include both the statistical error and the systematic error arising from the uncertainty in the stellar mass. The transit times are determined to within about 15 s and allow us to refine the estimate of the mean orbital period: P = 3.0300737 ± 0.0000026 days. We find no evidence for starspots or other irregularities that have been previously reported.
- Subject headings
planetary systems; stars: individual (TrES-1); techniques: photometric
- Dates
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Issue 2 (2007 March 10)
Received 2006 July 19, accepted for publication 2006 November 13
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The Transit Light Curve Project. III. Tres Transits of TrES-1
Joshua N. Winn et al. 2007 ApJ 657 1098
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