The Transit Light Curve (TLC) Project. I. Four Consecutive Transits of the Exoplanet XO-1b

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dc.creatorHolman, Matthew J.
dc.creatorWinn, Joshua N.
dc.creatorLatham, David W.
dc.creatorO'Donovan, Francis T.
dc.creatorCharbonneau, David
dc.creatorBakos, Gaspar A.
dc.creatorEsquerdo, Gilbert A.
dc.creatorHergenrother, Carl
dc.creatorEverett, Mark E.
dc.creatorPal, Andras
dc.date2006-07-25
dc.date.accessioned2026-07-07T10:39:40Z
dc.date.available2026-07-07T10:39:40Z
dc.descriptionWe present RIz photometry of four consecutive transits of the newly discovered exoplanet XO-1b. We improve upon the estimates of the transit parameters, finding the planetary radius to be R_P = 1.184 +0.028/-0.018 R_Jupiter and the stellar radius to be R_S = 0.928 +0.018/-0.013 R_Sun, assuming a stellar mass of M_S = 1.00 +/- 0.03 M_Sun. The uncertainties in the planetary and stellar radii are dominated by the uncertainty in the stellar mass. These uncertainties increase by a factor of 2-3 if a more conservative uncertainty of 0.10 M_Sun is assumed for the stellar mass. Our estimate of the planetary radius is smaller than that reported by McCullough et al. (2006) and yields a mean density that is comparable to that of TrES-1 and HD 189733b. The timings of the transits have an accuracy ranging from 0.2 to 2.5 minutes, and are marginally consistent with a uniform period.
dc.description22 pages, 5 figures, 2 tables. Accepted for publication in ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0607571
dc.identifierhttp://arxiv.org/abs/astro-ph/0607571
dc.identifierAstrophys.J.652:1715-1724,2006
dc.identifierdoi:10.1086/508155
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181106
dc.subjectAstrophysics
dc.titleThe Transit Light Curve (TLC) Project. I. Four Consecutive Transits of the Exoplanet XO-1b
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