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dc.contributor.authorPark, H.
dc.contributor.authorUdalski, A.
dc.contributor.authorHan, C.
dc.contributor.authorBeaulieu, J.-P.
dc.contributor.authorTsapras, Y.
dc.contributor.authorSzymański, M. K.
dc.contributor.authorKubiak, M.
dc.contributor.authorSoszyński, I.
dc.contributor.authorPietrzyński, G.
dc.contributor.authorPoleski, R.
dc.contributor.authorUlaczyk, K.
dc.contributor.authorPietrukowicz, P.
dc.contributor.authorKozłowski, S.
dc.contributor.authorSkowron, J.
dc.contributor.authorWyrzykowski, Ł.
dc.contributor.authorChoi, J.-Y.
dc.contributor.authorDepoy, D. L.
dc.contributor.authorDong, Subo
dc.contributor.authorGaudi, B. S.
dc.contributor.authorHwang, K.-H.
dc.contributor.authorJung, Y. K.
dc.contributor.authorKavka, A.
dc.contributor.authorLee, C.-U.
dc.contributor.authorMonard, L. A. G.
dc.contributor.authorPark, B.-G.
dc.contributor.authorPogge, R. W.
dc.contributor.authorPorritt, I.
dc.contributor.authorShin, I.-G.
dc.contributor.authorYee, J. C.
dc.contributor.authorAlbrow, M. D.
dc.contributor.authorBennett, D. P.
dc.contributor.authorCaldwell, J. A. R.
dc.contributor.authorCassan, A.
dc.contributor.authorCoutures, C.
dc.contributor.authorDominis, D.
dc.contributor.authorDonatowicz, J.
dc.contributor.authorFouqué, P.
dc.contributor.authorGreenhill, J.
dc.contributor.authorHuber, M.
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorKane, S.
dc.contributor.authorKubas, D.
dc.contributor.authorMarquette, J.-B.
dc.contributor.authorMenzies, J.
dc.contributor.authorBrowne, Paul
dc.contributor.authorDominik, M.
dc.contributor.authorHorne, K.
dc.contributor.authorHundertmark, M.
dc.contributor.authorKains, Noé
dc.contributor.authorOGLE Collaboration
dc.contributor.authorμFUN Collaboration
dc.contributor.authorPLANET Collaboration
dc.contributor.authorRoboNet Collaboration
dc.identifier.citationPark , H , Udalski , A , Han , C , Beaulieu , J-P , Tsapras , Y , Szymański , M K , Kubiak , M , Soszyński , I , Pietrzyński , G , Poleski , R , Ulaczyk , K , Pietrukowicz , P , Kozłowski , S , Skowron , J , Wyrzykowski , Ł , Choi , J-Y , Depoy , D L , Dong , S , Gaudi , B S , Hwang , K-H , Jung , Y K , Kavka , A , Lee , C-U , Monard , L A G , Park , B-G , Pogge , R W , Porritt , I , Shin , I-G , Yee , J C , Albrow , M D , Bennett , D P , Caldwell , J A R , Cassan , A , Coutures , C , Dominis , D , Donatowicz , J , Fouqué , P , Greenhill , J , Huber , M , Jørgensen , U G , Kane , S , Kubas , D , Marquette , J-B , Menzies , J , Browne , P , Dominik , M , Horne , K , Hundertmark , M , Kains , N , OGLE Collaboration , μFUN Collaboration , PLANET Collaboration & RoboNet Collaboration 2013 , ' Gravitational binary-lens events with prominent effects of lens orbital motion ' , Astrophysical Journal , vol. 778 , no. 2 , 134 .
dc.identifier.otherPURE: 149344230
dc.identifier.otherPURE UUID: f1754e40-fd3c-4f55-a8c1-7d08794ddaa5
dc.identifier.otherBibCode: 2013ApJ...778..134P
dc.identifier.otherWOS: 000327762800049
dc.identifier.otherScopus: 84887949949
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996724
dc.descriptionD.M.B., M.D., M.H., R.A.S., and Y.T. thank the Qatar Foundation for support from QNRF grant NPRP-09-476-1-078.en
dc.description.abstractGravitational microlensing events produced by lenses composed of binary masses are important because they provide a major channel for determining physical parameters of lenses. In this work, we analyze the light curves of two binary-lens events, OGLE-2006-BLG-277 and OGLE-2012-BLG-0031, for which the light curves exhibit strong deviations from standard models. From modeling considering various second-order effects, we find that the deviations are mostly explained by the effect of the lens orbital motion. We also find that lens parallax effects can mimic orbital effects to some extent. This implies that modeling light curves of binary-lens events not considering orbital effects can result in lens parallaxes that are substantially different from actual values and thus wrong determinations of physical lens parameters. This demonstrates the importance of routine consideration of orbital effects in interpreting light curves of binary-lens events. It is found that the lens of OGLE-2006-BLG-277 is a binary composed of a low-mass star and a brown dwarf companion.
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: generalen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleGravitational binary-lens events with prominent effects of lens orbital motionen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

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