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PLANET HUNTERS: A TRANSITING CIRCUMBINARY PLANET IN A QUADRUPLE STAR SYSTEM

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dc.contributor.authorSchwamb, Megan E.
dc.contributor.authorOrosz, Jerome A.
dc.contributor.authorCarter, Joshua A.
dc.contributor.authorWelsh, William F.
dc.contributor.authorFischer, Debra A.
dc.contributor.authorTorres, Guillermo
dc.contributor.authorHoward, Andrew W.
dc.contributor.authorCrepp, Justin R.
dc.contributor.authorKeel, William C.
dc.contributor.authorLintott, Chris J.
dc.contributor.authorKaib, Nathan A.
dc.contributor.authorTerrell, Dirk
dc.contributor.authorGagliano, Robert
dc.contributor.authorJek, Kian J.
dc.contributor.authorParrish, Michael
dc.contributor.authorSmith, Arfon M.
dc.contributor.authorLynn, Stuart
dc.contributor.authorSimpson, Robert J.
dc.contributor.authorGiguere, Matthew J.
dc.contributor.authorSchawinski, Kevin
dc.contributor.otherYale University
dc.contributor.otherCalifornia State University System
dc.contributor.otherSan Diego State University
dc.contributor.otherHarvard University
dc.contributor.otherSmithsonian Astrophysical Observatory
dc.contributor.otherSmithsonian Institution
dc.contributor.otherUniversity of Hawaii System
dc.contributor.otherCalifornia Institute of Technology
dc.contributor.otherUniversity of Notre Dame
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherFlorida Institute of Technology
dc.contributor.otherUniversity of Oxford
dc.contributor.otherNorthwestern University
dc.contributor.otherSwiss Federal Institutes of Technology Domain
dc.contributor.otherETH Zurich
dc.date.accessioned2018-09-18T21:55:22Z
dc.date.available2018-09-18T21:55:22Z
dc.date.issued2013-05-10
dc.description.abstractWe report the discovery and confirmation of a transiting circumbinary planet (PH1b) around KIC 4862625, an eclipsing binary in the Kepler field. The planet was discovered by volunteers searching the first six Quarters of publicly available Kepler data as part of the Planet Hunters citizen science project. Transits of the planet across the larger and brighter of the eclipsing stars are detectable by visual inspection every similar to 137 days, with seven transits identified in Quarters 1-11. The physical and orbital parameters of both the host stars and planet were obtained via a photometric-dynamical model, simultaneously fitting both the measured radial velocities and the Kepler light curve of KIC 4862625. The 6.18 +/- 0.17 R-circle plus planet orbits outside the 20 day orbit of an eclipsing binary consisting of an F dwarf (1.734 +/- 0.044 R-circle dot, 1.528 +/- 0.087 M-circle dot) and M dwarf (0.378 +/- 0.023 R-circle dot, 0.408 +/- 0.024 M-circle dot). For the planet, we find an upper mass limit of 169 M-circle plus (0.531 Jupiter masses) at the 99.7% confidence level. With a radius and mass less than that of Jupiter, PH1b is well within the planetary regime. Outside the planet's orbit, at similar to 1000 AU, a previously unknown visual binary has been identified that is likely bound to the planetary system, making this the first known case of a quadruple star system with a transiting planet.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationSchwamb, M., et al. (2013): Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System. The Astrophysical Journal, 768(2). DOI: https://doi.org/10.1088/0004-637X/768/2/127
dc.identifier.doi10.1088/0004-637X/768/2/127
dc.identifier.orcidhttps://orcid.org/0000-0001-5464-0888
dc.identifier.orcidhttps://orcid.org/0000-0003-2221-0861
dc.identifier.orcidhttps://orcid.org/0000-0001-8638-0320
dc.identifier.orcidhttps://orcid.org/0000-0002-3957-2474
dc.identifier.orcidhttps://orcid.org/0000-0002-5665-1879
dc.identifier.orcidhttps://orcid.org/0000-0003-2896-2503
dc.identifier.orcidhttps://orcid.org/0000-0003-4365-1455
dc.identifier.urihttp://ir.ua.edu/handle/123456789/3907
dc.languageEnglish
dc.language.isoen_US
dc.publisherIOP Publishing
dc.subjectbinaries: eclipsing
dc.subjectplanets and satellites: detection
dc.subjectplanets and satellites: general
dc.subjectstars: individual (KIC 4862625)
dc.subjectABSOLUTE DIMENSIONS
dc.subjectEVOLUTIONARY MODELS
dc.subjectECLIPSING BINARIES
dc.subjectACCURATE MASSES
dc.subjectGALAXY ZOO
dc.subjectKEPLER
dc.subjectCATALOG
dc.subjectARCHITECTURE
dc.subjectVELOCITY
dc.subjectTRIPLE
dc.subjectAstronomy & Astrophysics
dc.titlePLANET HUNTERS: A TRANSITING CIRCUMBINARY PLANET IN A QUADRUPLE STAR SYSTEMen_US
dc.typetext
dc.typeArticle

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