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First assessment of the binary lens OGLE-2015-BLG-0232

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dc.contributor.authorBachelet, E.
dc.contributor.authorBozza, V.
dc.contributor.authorHan, C.
dc.contributor.authorUdalski, A.
dc.contributor.authorBond, I. A.
dc.contributor.authorBeaulieu, J.-P.
dc.contributor.authorStreet, R. A.
dc.contributor.authorKim, J.-I
dc.contributor.authorBramich, D. M.
dc.contributor.authorCassan, A.
dc.contributor.authorDominik, M.
dc.contributor.authorFiguera Jaimes, R.
dc.contributor.authorHorne, K.
dc.contributor.authorHundertmark, M.
dc.contributor.authorMao, S.
dc.contributor.authorMenzies, J.
dc.contributor.authorRanc, C.
dc.contributor.authorSchmidt, R.
dc.contributor.authorSnodgrass, C.
dc.contributor.authorSteele, I. A.
dc.contributor.authorTsapras, Y.
dc.contributor.authorWambsganss, J.
dc.contributor.authorMróz, P.
dc.contributor.authorSoszyński, I.
dc.contributor.authorSzymański, M. K.
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.authorAbe, F.
dc.contributor.authorBarry, R.
dc.contributor.authorBennett, D. P.
dc.contributor.authorBhattacharya, A.
dc.contributor.authorDonachie, M.
dc.contributor.authorFukui, A.
dc.contributor.authorHirao, Y.
dc.contributor.authorItow, Y.
dc.contributor.authorKawasaki, K.
dc.contributor.authorKondo, I.
dc.contributor.authorKoshimoto, N.
dc.contributor.authorLi, M. Cheung Alex
dc.contributor.authorMatsubara, Y.
dc.contributor.authorMuraki, Y.
dc.contributor.authorMiyazaki, S.
dc.contributor.authorNagakane, M.
dc.contributor.authorRattenbury, N. J.
dc.contributor.authorSuematsu, H.
dc.contributor.authorSullivan, D. J.
dc.contributor.authorSumi, T.
dc.contributor.authorSuzuki, D.
dc.contributor.authorTristram, P. J.
dc.contributor.authorYonehara, A.
dc.date.accessioned2018-12-14T10:30:05Z
dc.date.available2018-12-14T10:30:05Z
dc.date.issued2018-12-27
dc.identifier.citationBachelet , E , Bozza , V , Han , C , Udalski , A , Bond , I A , Beaulieu , J-P , Street , R A , Kim , J -I , Bramich , D M , Cassan , A , Dominik , M , Figuera Jaimes , R , Horne , K , Hundertmark , M , Mao , S , Menzies , J , Ranc , C , Schmidt , R , Snodgrass , C , Steele , I A , Tsapras , Y , Wambsganss , J , Mróz , P , Soszyński , I , Szymański , M K , Skowron , J , Pietrukowicz , P , Kozłowski , S , Poleski , R , Ulaczyk , K , Pawlak , M , Abe , F , Barry , R , Bennett , D P , Bhattacharya , A , Donachie , M , Fukui , A , Hirao , Y , Itow , Y , Kawasaki , K , Kondo , I , Koshimoto , N , Li , M C A , Matsubara , Y , Muraki , Y , Miyazaki , S , Nagakane , M , Rattenbury , N J , Suematsu , H , Sullivan , D J , Sumi , T , Suzuki , D , Tristram , P J & Yonehara , A 2018 , ' First assessment of the binary lens OGLE-2015-BLG-0232 ' , Astrophysical Journal , vol. 870 , no. 1 , 11 . https://doi.org/10.3847/1538-4357/aaedb9en
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 256940408
dc.identifier.otherPURE UUID: fdbf22e6-9b84-4055-bef1-b6ad9c3e05de
dc.identifier.otherBibCode: 2018arXiv181102715B
dc.identifier.otherScopus: 85059844906
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996733
dc.identifier.otherWOS: 000454541100011
dc.identifier.urihttps://hdl.handle.net/10023/16686
dc.description.abstractWe present an analysis of the microlensing event OGLE-2015-BLG-0232. This event is challenging to characterize for two reasons. First, the light curve is not well sampled during the caustic crossing due to the proximity of the full Moon impacting the photometry quality. Moreover, the source brightness is difficult to estimate because this event is blended with a nearby K dwarf star. We found that the light curve deviations are likely due to a close brown dwarf companion (i.e., s = 0.55 and q = 0.06), but the exact nature of the lens is still unknown. We finally discuss the potential of follow-up observations to estimate the lens mass and distance in the future.
dc.language.isoeng
dc.relation.ispartofAstrophysical Journalen
dc.rightsCopyright © 2018 The American Astronomical Society. All rights reserved. This work has been made available online in accordance with the publisher's policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.3847/1538-4357/aaedb9en
dc.subjectGravitational microlensingen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject3rd-DASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleFirst assessment of the binary lens OGLE-2015-BLG-0232en
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.identifier.doihttps://doi.org/10.3847/1538-4357/aaedb9
dc.description.statusPeer revieweden
dc.identifier.urlhttp://adsabs.harvard.edu/abs/2018arXiv181102715Ben
dc.identifier.grantnumberST/M001296/1en


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