Transiting Exoplanets From The CoRoT Space Mission: XXVI. CoRoT-24: a transiting multiplanet system

dc.contributor.utaustinauthorCochran, W. D.en_US
dc.contributor.utaustinauthorEndl, M.en_US
dc.contributor.utaustinauthorMacQueen, P.J.en_US
dc.creatorAlonso, R.en_US
dc.creatorMoutou, C.en_US
dc.creatorEndl, M.en_US
dc.creatorAlmenara, J. M.en_US
dc.creatorGuenther, E. W.en_US
dc.creatorDeleuil, M.en_US
dc.creatorHatzes, A.en_US
dc.creatorAigrain, S.en_US
dc.creatorAuvergne, M.en_US
dc.creatorBaglin, A.en_US
dc.creatorBarge, P.en_US
dc.creatorBonomo, A. S.en_US
dc.creatorBorde, P.en_US
dc.creatorBouchy, F.en_US
dc.creatorCavarroc, C.en_US
dc.creatorCabrera, J.en_US
dc.creatorCarpano, S.en_US
dc.creatorCsizmadia, S.en_US
dc.creatorCochran, W. D.en_US
dc.creatorDeeg, H. J.en_US
dc.creatorDiaz, R. F.en_US
dc.creatorDvorak, R.en_US
dc.creatorErikson, A.en_US
dc.creatorFerraz-Mello, S.en_US
dc.creatorFridlund, M.en_US
dc.creatorFruth, T.en_US
dc.creatorGandolfi, D.en_US
dc.creatorGillon, M.en_US
dc.creatorGrziwa, S.en_US
dc.creatorGuillot, T.en_US
dc.creatorHebrard, G.en_US
dc.creatorJorda, L.en_US
dc.creatorLeger, A.en_US
dc.creatorLammer, H.en_US
dc.creatorLovis, C.en_US
dc.creatorMacQueen, P. J.en_US
dc.creatorMazeh, T.en_US
dc.creatorOfir, A.en_US
dc.creatorOlivier, M.en_US
dc.creatorPasternacki, T.en_US
dc.creatorPatzold, M.en_US
dc.creatorQueloz, D.en_US
dc.creatorRauer, H.en_US
dc.creatorRouan, D.en_US
dc.creatorSanterne, A.en_US
dc.creatorSchneider, J.en_US
dc.creatordos Santos, M. T.en_US
dc.creatorTingley, B.en_US
dc.creatorTitz-Weider, R.en_US
dc.creatorWeingrill, J.en_US
dc.creatorWuchterl, G.en_US
dc.description.abstractWe present the discovery of a candidate multiply transiting system, the first one found in the CoRoT mission. Two transit like features with periods of 5.11 and 11.76 d are detected in the CoRoT light curve around a main sequence K1V star of r = 15.1. If the features are due to transiting planets around the same star, these would correspond to objects of 3.7 +/- 0.4 and 5.0 +/- 0.5 R-circle plus, respectively. Several radial velocities serve to provide an upper limit of 5.7 M-circle plus for the 5.11 d signal and to tentatively measure a mass of 28(-11)(+11); M-circle plus for the object transiting with a 11.76 d period. These measurements imply low density objects, with a significant gaseous envelope. The detailed analysis of the photometric and spectroscopic data serves to estimate the probability that the observations are caused by transiting Neptune-sized planets as much as over 26 times higher than a blend scenario involving only one transiting planet and as much as over 900 times higher than a scenario involving two blends and no planets. The radial velocities show a long-term modulation that might be attributed to a 1.5 M-Jup planet orbiting at 1.8 AU from the host, but more data are required to determine the precise orbital parameters of this companion.en_US
dc.description.departmentMcDonald Observatoryen_US
dc.description.sponsorshipSpanish Ministry of Science and Innovation (MICINN) ESP2007-65480-C02-02, AYA2010-20982-C02-02en_US
dc.description.sponsorshipDER 50OW0204, 50OW0603, 50QM1004en_US
dc.description.sponsorshipCNES ANR-08-JC-0102-01en_US
dc.description.sponsorshipFrench National Research Agency ANR-08- JCJC- 0102-01en_US
dc.description.sponsorshipESA PRODEX programen_US
dc.description.sponsorshipSwiss National Science Foundationen_US
dc.description.sponsorshipSpanish Ministry through its Ramon y Cajal program RYC-2010-06519en_US
dc.description.sponsorshipSTEC ST/0002266en_US
dc.description.sponsorshipBelgian Science Policy Officeen_US
dc.description.sponsorshipNASA Origins of Solar Systems grant NNX09AB30Gen_US
dc.description.sponsorshipIsraeli Science Foundation 655/07en_US
dc.description.sponsorshipEuropean Research Council/European Community under the FP7 239953en_US
dc.description.sponsorshipW. M. Keck Foundationen_US
dc.identifier.citationAlonso, R., C. Moutou, M. Endl, J-M. Almenara, E. W. Guenther, M. Deleuil, A. Hatzes et al. >Transiting exoplanets from the CoRoT space mission-XXVI. CoRoT-24: a transiting multiplanet system.> Astronomy & Astrophysics, Vol. 567 (Jul., 2014): A112.en_US
dc.relation.ispartofserialAstronomy & Astrophysicsen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.subjectplanetary systemsen_US
dc.subjecttechniques: photometricen_US
dc.subjecttechniques: radialen_US
dc.subjecttechniques: spectroscopicen_US
dc.subjecteclipsing binariesen_US
dc.subjecttiming variationsen_US
dc.subjectinterstellar extinctionen_US
dc.subjectblend scenariosen_US
dc.subjectmultiple systemen_US
dc.subjectopen clustersen_US
dc.subjectlight curvesen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleTransiting Exoplanets From The CoRoT Space Mission: XXVI. CoRoT-24: a transiting multiplanet systemen_US

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