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dc.contributor.authorBarclay, Thomas
dc.contributor.authorHuber, Daniel
dc.contributor.authorRowe, Jason F.
dc.contributor.authorFortney, Jonathan J.
dc.contributor.authorMorley, Caroline V.
dc.contributor.authorQuintana, Elisa V.
dc.contributor.authorFabrycky, Daniel C.
dc.contributor.authorBarentsen, Geert
dc.contributor.authorBloemen, S.
dc.contributor.authorChristiansen, Jessie L.
dc.contributor.authorDemory, Brice-Olivier
dc.contributor.authorFulton, Benjamin J.
dc.contributor.authorJenkins, Jon M.
dc.contributor.authorMullally, Fergal
dc.contributor.authorRagozzine, Darin
dc.contributor.authorSeader, Shaun E.
dc.contributor.authorShporer, Avi
dc.contributor.authorTenenbaum, Peter
dc.contributor.authorThompson, Susan E.
dc.date.accessioned2015-02-25T21:51:58Z
dc.date.available2015-02-25T21:51:58Z
dc.date.issued2012-11
dc.date.submitted2012-08
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://hdl.handle.net/1721.1/95638
dc.description.abstractWe measure the mass and radius of the star and planet in the TrES-2 system using 2.7 years of observations by the Kepler spacecraft. The light curve shows evidence for ellipsoidal variations and Doppler beaming on a period consistent with the orbital period of the planet with amplitudes of 2.79 [superscript +0.44] [subscript –0.62] and 3.44 [superscript +0.32] [subscript –0.37] parts per million (ppm), respectively, and a difference between the dayside and the nightside planetary flux of 3.41[superscript +0.55] [subscript –0.82] ppm. We present an asteroseismic analysis of solar-like oscillations on TrES-2A which we use to calculate the stellar mass of 0.94 ± 0.05 M [subscript ☉] and radius of 0.95 ± 0.02 R [subscript ☉]. Using these stellar parameters, a transit model fit and the phase-curve variations, we determine the planetary radius of 1.162[superscript +0.020] [subscript –0.024] R[subscript Jup] and derive a mass for TrES-2b from the photometry of 1.44 ± 0.21 M [subscript Jup]. The ratio of the ellipsoidal variation to the Doppler beaming amplitudes agrees to better than 2σ with theoretical predications, while our measured planet mass and radius agree within 2σ of previously published values based on spectroscopic radial velocity measurements. We measure a geometric albedo of 0.0136[superscript +0.0022] [subscript –0.0033] and an occultation (secondary eclipse) depth of 6.5 [superscript +1.7] [subscript –1.8] ppm which we combined with the day/night planetary flux ratio to model the atmosphere of TrES-2b. We find that an atmosphere model that contains a temperature inversion is strongly preferred. We hypothesize that the Kepler bandpass probes a significantly greater atmospheric depth on the night side relative to the day side.en_US
dc.language.isoen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/0004-637x/761/1/53en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Astronomical Societyen_US
dc.titlePHOTOMETRICALLY DERIVED MASSES AND RADII OF THE PLANET AND STAR IN THE TrES-2 SYSTEMen_US
dc.typeArticleen_US
dc.identifier.citationBarclay, Thomas, Daniel Huber, Jason F. Rowe, Jonathan J. Fortney, Caroline V. Morley, Elisa V. Quintana, Daniel C. Fabrycky, et al. “PHOTOMETRICALLY DERIVED MASSES AND RADII OF THE PLANET AND STAR IN THE TrES-2 SYSTEM.” The Astrophysical Journal 761, no. 1 (November 21, 2012): 53. © 2012 The American Astronomical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.mitauthorDemory, Brice-Olivieren_US
dc.relation.journalAstrophysical Journalen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsBarclay, Thomas; Huber, Daniel; Rowe, Jason F.; Fortney, Jonathan J.; Morley, Caroline V.; Quintana, Elisa V.; Fabrycky, Daniel C.; Barentsen, Geert; Bloemen, Steven; Christiansen, Jessie L.; Demory, Brice-Olivier; Fulton, Benjamin J.; Jenkins, Jon M.; Mullally, Fergal; Ragozzine, Darin; Seader, Shaun E.; Shporer, Avi; Tenenbaum, Peter; Thompson, Susan E.en_US
mit.licensePUBLISHER_POLICYen_US


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