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dc.contributor.authorCochran, W.D.
dc.contributor.authorMacQueen, P.J.
dc.contributor.authorEndl, M.
dc.contributor.authorFabrycky, D.C.
dc.contributor.authorFortney, J.J.
dc.contributor.authorMiller, N.
dc.contributor.authorTorres, G.
dc.contributor.authorFressin, F.
dc.contributor.authorDésert, J.-M.
dc.contributor.authorRagozzine, D.
dc.contributor.authorSasselov, D.
dc.contributor.authorCarter, J.A.
dc.contributor.authorQuinn, S.N.
dc.contributor.authorLatham, D.W.
dc.contributor.authorHolman, M.J.
dc.contributor.authorCharbonneau, D.
dc.contributor.authorRowe, J.F.
dc.contributor.authorBryson, S.T.
dc.contributor.authorHowell, S.B.
dc.contributor.authorBorucki, W.J.
dc.contributor.authorKoch, D.G.
dc.contributor.authorUddin, K.
dc.contributor.authorTenenbaum, P.
dc.contributor.authorStill, M.
dc.contributor.authorMullally, F.
dc.contributor.authorLissauer, J.J.
dc.contributor.authorKinemuchi, K.
dc.contributor.authorJenkins, J.M.
dc.contributor.authorHenze, C.E.
dc.contributor.authorHaas, M.R.
dc.contributor.authorCaldwell, D.
dc.contributor.authorBrugamyer, E.J.
dc.contributor.authorCiardi, D.R.
dc.contributor.authorSteffen, J.H.
dc.contributor.authorWinn, J.N.
dc.contributor.authorSeager, S.
dc.contributor.authorDemory, B.-O.
dc.contributor.authorWelsh, W.F.
dc.contributor.authorUddin, K.
dc.contributor.authorTenenbaum, P.
dc.contributor.authorMullally, F.
dc.contributor.authorJenkins, J.M.
dc.contributor.authorCaldwell, D.
dc.contributor.authorStill, M.
dc.contributor.authorKinemuchi, K.
dc.contributor.authorMarcy, G.W.
dc.contributor.authorKnutson, H.
dc.contributor.authorIsaacson, H.
dc.contributor.authorHoward, A.
dc.contributor.authorLucas, P.W.
dc.contributor.authorJohnson, J.A.
dc.contributor.authorHorch, E.
dc.contributor.authorGilliland, R.L.
dc.contributor.authorGautier, T.N.
dc.contributor.authorFord, E.B.
dc.contributor.authorFischer, D.A.
dc.contributor.authorEverett, M.
dc.contributor.authorDeming, D.
dc.contributor.authorBuchhave, L.
dc.contributor.authorBrown, T.M.
dc.contributor.authorBatalha, N.
dc.date.accessioned2011-11-30T12:01:09Z
dc.date.available2011-11-30T12:01:09Z
dc.date.issued2011-11-01
dc.identifier.citationCochran , W D , MacQueen , P J , Endl , M , Fabrycky , D C , Fortney , J J , Miller , N , Torres , G , Fressin , F , Désert , J-M , Ragozzine , D , Sasselov , D , Carter , J A , Quinn , S N , Latham , D W , Holman , M J , Charbonneau , D , Rowe , J F , Bryson , S T , Howell , S B , Borucki , W J , Koch , D G , Uddin , K , Tenenbaum , P , Still , M , Mullally , F , Lissauer , J J , Kinemuchi , K , Jenkins , J M , Henze , C E , Haas , M R , Caldwell , D , Brugamyer , E J , Ciardi , D R , Steffen , J H , Winn , J N , Seager , S , Demory , B-O , Welsh , W F , Uddin , K , Tenenbaum , P , Mullally , F , Jenkins , J M , Caldwell , D , Still , M , Kinemuchi , K , Marcy , G W , Knutson , H , Isaacson , H , Howard , A , Lucas , P W , Johnson , J A , Horch , E , Gilliland , R L , Gautier , T N , Ford , E B , Fischer , D A , Everett , M , Deming , D , Buchhave , L , Brown , T M & Batalha , N 2011 , ' Kepler-18b, c, and d : A system of three planets confirmed by transit timing variations, light curve validation, Warm-Spitzer photometry, and radial velocity measurements ' , Astrophysical Journal, Supplement Series , vol. 197 , no. 1 , 7 . https://doi.org/10.1088/0067-0049/197/1/7
dc.identifier.issn0067-0049
dc.identifier.otherPURE: 465404
dc.identifier.otherPURE UUID: 7b73eae9-8e99-41b4-9cb3-8128286f3e9b
dc.identifier.otherScopus: 80655124817
dc.identifier.otherORCID: /0000-0002-8872-4462/work/62748866
dc.identifier.urihttp://hdl.handle.net/2299/7197
dc.description‘In these times, during the rise in the popularity of institutional repositories, the Society does not forbid authors from depositing their work in such repositories. However, the AAS regards the deposit of scholarly work in such repositories to be a decision of the individual scholar, as long as the individual's actions respect the diligence of the journals and their reviewers.’ Original article can be found at : http://iopscience.iop.org/ Copyright American Astronomical Society
dc.description.abstractWe report the detection of three transiting planets around a Sun-like star, which we designate Kepler-18. The transit signals were detected in photometric data from the Kepler satellite, and were confirmed to arise from planets using a combination of large transit-timing variations (TTVs), radial velocity variations, Warm-Spitzer observations, and statistical analysis of false-positive probabilities. The Kepler-18 star has a mass of 0.97 M , a radius of 1.1 R , an effective temperature of 5345K, and an iron abundance of [Fe/H] = +0.19. The planets have orbital periods of approximately 3.5, 7.6, and 14.9 days. The innermost planet "b" is a "super-Earth" with a mass of 6.9 ± 3.4 M , a radius of 2.00 ± 0.10 R , and a mean density of 4.9 ± 2.4gcm. The two outer planets "c" and "d" are both low-density Neptune-mass planets. Kepler-18c has a mass of 17.3 ± 1.9 M , a radius of 5.49 ± 0.26 R , and a mean density of 0.59 0.07gcm , while Kepler-18d has a mass of 16.4 ± 1.4 M , a radius of 6.98 ± 0.33 R and a mean density of 0.27 ± 0.03gcm. Kepler-18c and Kepler-18d have orbital periods near a 2:1 mean-motion resonance, leading to large and readily detected TTVs.en
dc.format.extent19
dc.language.isoeng
dc.relation.ispartofAstrophysical Journal, Supplement Series
dc.rightsOpen
dc.subjectplanetary systems
dc.subjectstars: individual (Kepler-18, KIC 8644288, 2MASS J19521906+4444467)
dc.subjecttechniques: photometric
dc.subjecttechniques: spectroscopic
dc.titleKepler-18b, c, and d : A system of three planets confirmed by transit timing variations, light curve validation, Warm-Spitzer photometry, and radial velocity measurementsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=80655124817&partnerID=8YFLogxK
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2011-11-01
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1088/0067-0049/197/1/7
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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