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An analysis of binary microlensing event OGLE-2015-BLG-0060

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dc.contributor.authorTsapras, Y.
dc.contributor.authorCassan, A.
dc.contributor.authorRanc, C.
dc.contributor.authorBachelet, E.
dc.contributor.authorStreet, R.
dc.contributor.authorUdalski, A.
dc.contributor.authorHundertmark, M.
dc.contributor.authorBozza, V.
dc.contributor.authorBeaulieu, J. P.
dc.contributor.authorMarquette, J. B.
dc.contributor.authorEuteneuer, E.
dc.contributor.authorBramich, D. M.
dc.contributor.authorDominik, M.
dc.contributor.authorFiguera Jaimes, R.
dc.contributor.authorHorne, K.
dc.contributor.authorMao, S.
dc.contributor.authorMenzies, J.
dc.contributor.authorSchmidt, R.
dc.contributor.authorSnodgrass, C.
dc.contributor.authorSteele, I. A.
dc.contributor.authorWambsganss, J.
dc.contributor.authorMróz, P.
dc.contributor.authorSzymański, M. K.
dc.contributor.authorSoszyński, I.
dc.contributor.authorSkowron, J.
dc.contributor.authorPietrukowicz, P.
dc.contributor.authorKozłowski, S.
dc.contributor.authorPoleski, R.
dc.contributor.authorUlaczyk, K.
dc.contributor.authorPawlak, M.
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorSkottfelt, J.
dc.contributor.authorPopovas, A.
dc.contributor.authorCiceri, S.
dc.contributor.authorKorhonen, H.
dc.contributor.authorKuffmeier, M.
dc.contributor.authorEvans, D. F.
dc.contributor.authorPeixinho, N.
dc.contributor.authorHinse, T. C.
dc.contributor.authorBurgdorf, M. J.
dc.contributor.authorSouthworth, J.
dc.contributor.authorTronsgaard, R.
dc.contributor.authorKerins, E.
dc.contributor.authorAndersen, M. I.
dc.contributor.authorRahvar, S.
dc.contributor.authorWang, Y.
dc.contributor.authorWertz, O.
dc.contributor.authorRabus, M.
dc.contributor.authorCalchi Novati, S.
dc.contributor.authorD'Ago, G.
dc.contributor.authorScarpetta, G.
dc.contributor.authorMancini, L.
dc.contributor.authorAbe, F.
dc.contributor.authorAsakura, Y.
dc.contributor.authorBennett, D. P.
dc.contributor.authorBhattacharya, A.
dc.contributor.authorDonachie, M.
dc.contributor.authorEvans, P.
dc.contributor.authorFukui, A.
dc.contributor.authorHirao, Y.
dc.contributor.authorItow, Y.
dc.contributor.authorKawasaki, K.
dc.contributor.authorKoshimoto, N.
dc.contributor.authorLi, M. C. A.
dc.contributor.authorLing, C. H.
dc.contributor.authorMasuda, K.
dc.contributor.authorMatsubara, Y.
dc.contributor.authorMuraki, Y.
dc.contributor.authorMiyazaki, S.
dc.contributor.authorNagakane, M.
dc.contributor.authorOhnishi, K.
dc.contributor.authorRattenbury, N.
dc.contributor.authorSaito, To.
dc.contributor.authorSharan, A.
dc.contributor.authorShibai, H.
dc.contributor.authorSullivan, D. J.
dc.contributor.authorSumi, T.
dc.contributor.authorSuzuki, D.
dc.contributor.authorTristram, P. J.
dc.contributor.authorYamada, T.
dc.contributor.authorYonehara, A.
dc.date.accessioned2019-07-18T11:30:03Z
dc.date.available2019-07-18T11:30:03Z
dc.date.issued2019-08
dc.identifier259652888
dc.identifier299e280e-f487-48df-ab10-5485e9ee207a
dc.identifier000475888500013
dc.identifier85070099871
dc.identifier.citationTsapras , Y , Cassan , A , Ranc , C , Bachelet , E , Street , R , Udalski , A , Hundertmark , M , Bozza , V , Beaulieu , J P , Marquette , J B , Euteneuer , E , Bramich , D M , Dominik , M , Figuera Jaimes , R , Horne , K , Mao , S , Menzies , J , Schmidt , R , Snodgrass , C , Steele , I A , Wambsganss , J , Mróz , P , Szymański , M K , Soszyński , I , Skowron , J , Pietrukowicz , P , Kozłowski , S , Poleski , R , Ulaczyk , K , Pawlak , M , Jørgensen , U G , Skottfelt , J , Popovas , A , Ciceri , S , Korhonen , H , Kuffmeier , M , Evans , D F , Peixinho , N , Hinse , T C , Burgdorf , M J , Southworth , J , Tronsgaard , R , Kerins , E , Andersen , M I , Rahvar , S , Wang , Y , Wertz , O , Rabus , M , Calchi Novati , S , D'Ago , G , Scarpetta , G , Mancini , L , Abe , F , Asakura , Y , Bennett , D P , Bhattacharya , A , Donachie , M , Evans , P , Fukui , A , Hirao , Y , Itow , Y , Kawasaki , K , Koshimoto , N , Li , M C A , Ling , C H , Masuda , K , Matsubara , Y , Muraki , Y , Miyazaki , S , Nagakane , M , Ohnishi , K , Rattenbury , N , Saito , T , Sharan , A , Shibai , H , Sullivan , D J , Sumi , T , Suzuki , D , Tristram , P J , Yamada , T & Yonehara , A 2019 , ' An analysis of binary microlensing event OGLE-2015-BLG-0060 ' , Monthly Notices of the Royal Astronomical Society , vol. 487 , no. 4 , pp. 4603–4614 . https://doi.org/10.1093/mnras/stz1404en
dc.identifier.issn0035-8711
dc.identifier.otherBibCode: 2019MNRAS.tmp.1368T
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996776
dc.identifier.urihttps://hdl.handle.net/10023/18122
dc.descriptionFunding: UK STFC grant ST/M001296/1 (KH).en
dc.description.abstractWe present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up observations from the robotic telescopes of the Las Cumbres Observatory. We show that, for the first time, all main features of an anomalous microlensing event are well covered by follow-up data, allowing us to estimate the physical parameters of the lens. The strong detection of second-order effects in the event light curve necessitates the inclusion of longer-baseline survey data in order to constrain the parallax vector. We find that the event was most likely caused by a stellar binary-lens with masses M⋆1=0.87±0.12M⊙ and M⋆2=0.77±0.11M⊙⁠. The distance to the lensing system is 6.41 ± 0.14 kpc and the projected separation between the two components is 13.85 ± 0.16 au. Alternative interpretations are also considered.
dc.format.extent43810906
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.subjectGravitational lensing: microen
dc.subjectMethods: observationalen
dc.subjectTechniques: photometricen
dc.subjectGalaxy: bulgeen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleAn analysis of binary microlensing event OGLE-2015-BLG-0060en
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1093/mnras/stz1404
dc.description.statusPeer revieweden
dc.identifier.urlhttp://adsabs.harvard.edu/abs/2019MNRAS.tmp.1368Ten
dc.identifier.grantnumberST/M001296/1en


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