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dc.contributor.authorHwang, K.-H.
dc.contributor.authorChoi, J.-Y.
dc.contributor.authorBond, I. A.
dc.contributor.authorSumi, T.
dc.contributor.authorHan, C.
dc.contributor.authorGaudi, B. S.
dc.contributor.authorGould, A.
dc.contributor.authorBozza, V.
dc.contributor.authorBeaulieu, J.-P.
dc.contributor.authorTsapras, Y.
dc.contributor.authorAbe, F.
dc.contributor.authorBennett, D. P.
dc.contributor.authorBotzler, C. S.
dc.contributor.authorChote, P.
dc.contributor.authorFreeman, M.
dc.contributor.authorFukui, A.
dc.contributor.authorFukunaga, D.
dc.contributor.authorHarris, P.
dc.contributor.authorItow, Y.
dc.contributor.authorKoshimoto, N.
dc.contributor.authorLing, C. H.
dc.contributor.authorMasuda, K.
dc.contributor.authorMatsubara, Y.
dc.contributor.authorMuraki, Y.
dc.contributor.authorNamba, S.
dc.contributor.authorOhnishi, K.
dc.contributor.authorRattenbury, N. J.
dc.contributor.authorSaito, To.
dc.contributor.authorSullivan, D. J.
dc.contributor.authorSweatman, W. L.
dc.contributor.authorSuzuki, D.
dc.contributor.authorTristram, P. J.
dc.contributor.authorWada, K.
dc.contributor.authorYamai, N.
dc.contributor.authorYock, P. C. M.
dc.contributor.authorYonehara, A.
dc.contributor.authorde Almeida, L. Andrade
dc.contributor.authorDePoy, D. L.
dc.contributor.authorDong, Subo
dc.contributor.authorJablonski, F.
dc.contributor.authorJung, Y. K.
dc.contributor.authorKavka, A.
dc.contributor.authorLee, C.-U.
dc.contributor.authorPark, H.
dc.contributor.authorPogge, R. W.
dc.contributor.authorShin, I.-G.
dc.contributor.authorYee, J. C.
dc.contributor.authorAlbrow, M. D.
dc.contributor.authorBachelet, E.
dc.contributor.authorBatista, V.
dc.contributor.authorBrillant, S.
dc.contributor.authorCaldwell, J. A. R.
dc.contributor.authorCassan, A.
dc.contributor.authorCole, A.
dc.contributor.authorCorrales, E.
dc.contributor.authorCoutures, Ch.
dc.contributor.authorDieters, S.
dc.contributor.authorDominis Prester, D.
dc.contributor.authorDonatowicz, J.
dc.contributor.authorFouqué, P.
dc.contributor.authorGreenhill, J.
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorKane, S. R.
dc.contributor.authorKubas, D.
dc.contributor.authorMarquette, J.-B.
dc.contributor.authorMartin, R.
dc.contributor.authorMeintjes, P.
dc.contributor.authorMenzies, J.
dc.contributor.authorPollard, K. R.
dc.contributor.authorWilliams, A.
dc.contributor.authorWouters, D.
dc.contributor.authorBramich, D. M.
dc.contributor.authorDominik, M.
dc.contributor.authorHorne, K.
dc.contributor.authorBrowne, P.
dc.contributor.authorHundertmark, M.
dc.contributor.authorIpatov, S.
dc.contributor.authorKains, Noé
dc.contributor.authorSnodgrass, C.
dc.contributor.authorSteele, I. A.
dc.contributor.authorStreet, R. A.
dc.date.accessioned2014-09-23T16:31:01Z
dc.date.available2014-09-23T16:31:01Z
dc.date.issued2013-11-20
dc.identifier.citationHwang , K-H , Choi , J-Y , Bond , I A , Sumi , T , Han , C , Gaudi , B S , Gould , A , Bozza , V , Beaulieu , J-P , Tsapras , Y , Abe , F , Bennett , D P , Botzler , C S , Chote , P , Freeman , M , Fukui , A , Fukunaga , D , Harris , P , Itow , Y , Koshimoto , N , Ling , C H , Masuda , K , Matsubara , Y , Muraki , Y , Namba , S , Ohnishi , K , Rattenbury , N J , Saito , T , Sullivan , D J , Sweatman , W L , Suzuki , D , Tristram , P J , Wada , K , Yamai , N , Yock , P C M , Yonehara , A , de Almeida , L A , DePoy , D L , Dong , S , Jablonski , F , Jung , Y K , Kavka , A , Lee , C-U , Park , H , Pogge , R W , Shin , I-G , Yee , J C , Albrow , M D , Bachelet , E , Batista , V , Brillant , S , Caldwell , J A R , Cassan , A , Cole , A , Corrales , E , Coutures , C , Dieters , S , Dominis Prester , D , Donatowicz , J , Fouqué , P , Greenhill , J , Jørgensen , U G , Kane , S R , Kubas , D , Marquette , J-B , Martin , R , Meintjes , P , Menzies , J , Pollard , K R , Williams , A , Wouters , D , Bramich , D M , Dominik , M , Horne , K , Browne , P , Hundertmark , M , Ipatov , S , Kains , N , Snodgrass , C , Steele , I A & Street , R A 2013 , ' Interpretation of a short-term anomaly in the gravitational microlensing event MOA-2012-BLG-486 ' , Astrophysical Journal , vol. 778 , no. 1 , 55 . https://doi.org/10.1088/0004-637X/778/1/55en
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 149345122
dc.identifier.otherPURE UUID: 12694161-d76d-42e0-8aa3-8928770ab9bc
dc.identifier.otherBibCode: 2013ApJ...778...55H
dc.identifier.otherScopus: 84887853137
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996670
dc.identifier.urihttp://hdl.handle.net/10023/5491
dc.descriptionD.M.B., M.D., K.H., M.H., S.I., C.S., R.A.S., and Y.T. are supported by NPRP grant NPRP-09-476-1-78 from the Qatar National Research Fund (a member of Qatar Foundation). K.H. is supported by a Royal Society Leverhulme Senior Research Fellowship.en
dc.description.abstractA planetary microlensing signal is generally characterized by a short-term perturbation to the standard single lensing light curve. A subset of binary-source events can produce perturbations that mimic planetary signals, thereby introducing an ambiguity between the planetary and binary-source interpretations. In this paper, we present the analysis of the microlensing event MOA-2012-BLG-486, for which the light curve exhibits a short-lived perturbation. Routine modeling not considering data taken in different passbands yields a best-fit planetary model that is slightly preferred over the best-fit binary-source model. However, when allowed for a change in the color during the perturbation, we find that the binary-source model yields a significantly better fit and thus the degeneracy is clearly resolved. This event not only signifies the importance of considering various interpretations of short-term anomalies, but also demonstrates the importance of multi-band data for checking the possibility of false-positive planetary signals.
dc.format.extent6
dc.language.isoeng
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2013. The American Astronomical Society. All rights reserved.en
dc.subjectBinaries: generalen
dc.subjectGravitational lensing: microen
dc.subjectPlanets and satellites: detectionen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleInterpretation of a short-term anomaly in the gravitational microlensing event MOA-2012-BLG-486en
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1088/0004-637X/778/1/55
dc.description.statusPeer revieweden


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