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Reanalyses of anomalous gravitational microlensing events in the OGLE-III early warning system database with combined data

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dc.contributor.authorJeong, J.
dc.contributor.authorPark, H.
dc.contributor.authorHan, C.
dc.contributor.authorGould, A.
dc.contributor.authorUdalski, A.
dc.contributor.authorSzymański, M. K.
dc.contributor.authorPietrzyński, G.
dc.contributor.authorSoszyński, I.
dc.contributor.authorPoleski, R.
dc.contributor.authorUlaczyk, K.
dc.contributor.authorWyrzykowski, Ł.
dc.contributor.authorAbe, F.
dc.contributor.authorBennett, D. P.
dc.contributor.authorBond, I. A.
dc.contributor.authorBotzler, C. S.
dc.contributor.authorFreeman, M.
dc.contributor.authorFukui, A.
dc.contributor.authorFukunaga, D.
dc.contributor.authorItow, Y.
dc.contributor.authorKoshimoto, N.
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.authorSumi, T.
dc.contributor.authorSuzuki, D.
dc.contributor.authorTristram, P. J.
dc.contributor.authorTsurumi, N.
dc.contributor.authorWada, K.
dc.contributor.authorYamai, N.
dc.contributor.authorYock, P. C. M.
dc.contributor.authorYonehara, A.
dc.contributor.authorAlbrow, M. D.
dc.contributor.authorBatista, V.
dc.contributor.authorBeaulieu, J.-P.
dc.contributor.authorCaldwell, J. A. R.
dc.contributor.authorCassan, A.
dc.contributor.authorCole, A.
dc.contributor.authorCoutures, C.
dc.contributor.authorDieters, S.
dc.contributor.authorDominik, M.
dc.contributor.authorDominis Prester, D.
dc.contributor.authorDonatowicz, J.
dc.contributor.authorFouqué, P.
dc.contributor.authorGreenhill, J.
dc.contributor.authorHoffman, M.
dc.contributor.authorHuber, M.
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorKane, S. R.
dc.contributor.authorKubas, D.
dc.contributor.authorMartin, R.
dc.contributor.authorMarquette, J.-B.
dc.contributor.authorMenzies, J.
dc.contributor.authorPitrou, C.
dc.contributor.authorPollard, K.
dc.contributor.authorSahu, K. C.
dc.contributor.authorVinter, C.
dc.contributor.authorWambsganss, J.
dc.contributor.authorWilliams, A.
dc.contributor.authorAllen, W.
dc.contributor.authorBolt, G.
dc.contributor.authorChoi, J.-Y.
dc.contributor.authorChristie, G. W.
dc.contributor.authorDePoy, D. L.
dc.contributor.authorDrummond, J.
dc.contributor.authorGaudi, B. S.
dc.contributor.authorHwang, K.-H.
dc.contributor.authorJung, Y. K.
dc.contributor.authorLee, C.-U.
dc.contributor.authorMallia, F.
dc.contributor.authorMaoz, D.
dc.contributor.authorMaury, A.
dc.contributor.authorMcCormick, J.
dc.contributor.authorMonard, L. A. G.
dc.contributor.authorMoorhouse, D.
dc.contributor.authorNatusch, T.
dc.contributor.authorOfek, E. O.
dc.contributor.authorPark, B.-G.
dc.contributor.authorPogge, R. W.
dc.contributor.authorSantallo, R.
dc.contributor.authorShin, I.-G.
dc.contributor.authorThornley, G.
dc.contributor.authorYee, J. C.
dc.contributor.authorBramich, D. M.
dc.contributor.authorBurgdorf, M.
dc.contributor.authorHorne, K.
dc.contributor.authorHundertmark, M.
dc.contributor.authorKains, N.
dc.contributor.authorSnodgrass, C.
dc.contributor.authorSteele, I.
dc.contributor.authorStreet, R.
dc.contributor.authorTsapras, Y.
dc.date.accessioned2015-06-08T12:10:03Z
dc.date.available2015-06-08T12:10:03Z
dc.date.issued2015-05-01
dc.identifier.citationJeong , J , Park , H , Han , C , Gould , A , Udalski , A , Szymański , M K , Pietrzyński , G , Soszyński , I , Poleski , R , Ulaczyk , K , Wyrzykowski , Ł , Abe , F , Bennett , D P , Bond , I A , Botzler , C S , Freeman , M , Fukui , A , Fukunaga , D , Itow , Y , Koshimoto , N , Masuda , K , Matsubara , Y , Muraki , Y , Namba , S , Ohnishi , K , Rattenbury , N J , Saito , T , Sullivan , D J , Sweatman , W L , Sumi , T , Suzuki , D , Tristram , P J , Tsurumi , N , Wada , K , Yamai , N , Yock , P C M , Yonehara , A , Albrow , M D , Batista , V , Beaulieu , J-P , Caldwell , J A R , Cassan , A , Cole , A , Coutures , C , Dieters , S , Dominik , M , Dominis Prester , D , Donatowicz , J , Fouqué , P , Greenhill , J , Hoffman , M , Huber , M , Jørgensen , U G , Kane , S R , Kubas , D , Martin , R , Marquette , J-B , Menzies , J , Pitrou , C , Pollard , K , Sahu , K C , Vinter , C , Wambsganss , J , Williams , A , Allen , W , Bolt , G , Choi , J-Y , Christie , G W , DePoy , D L , Drummond , J , Gaudi , B S , Hwang , K-H , Jung , Y K , Lee , C-U , Mallia , F , Maoz , D , Maury , A , McCormick , J , Monard , L A G , Moorhouse , D , Natusch , T , Ofek , E O , Park , B-G , Pogge , R W , Santallo , R , Shin , I-G , Thornley , G , Yee , J C , Bramich , D M , Burgdorf , M , Horne , K , Hundertmark , M , Kains , N , Snodgrass , C , Steele , I , Street , R & Tsapras , Y 2015 , ' Reanalyses of anomalous gravitational microlensing events in the OGLE-III early warning system database with combined data ' , Astrophysical Journal , vol. 804 , no. 1 . https://doi.org/10.1088/0004-637X/804/1/38en
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 192928933
dc.identifier.otherPURE UUID: 7833dc47-d667-4a54-920a-29d3e2f2ea4d
dc.identifier.otherBibCode: 2015ApJ...804...38J
dc.identifier.otherScopus: 84946164905
dc.identifier.otherWOS: 000354189500038
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996787
dc.identifier.urihttps://hdl.handle.net/10023/6780
dc.descriptionWork by C.H. was supported by the Creative Research Initiative Program (2009-0081561) of the National Research Foundation of Korea. The OGLE project has received funding from the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013) / ERC grant agreement no. 246678 to AU. The MOA project is supported by the grants JSPS18253002 and JSPS20340052. T.S. acknowledges the financial support from the JSPS, JSPS23340044 and JSPS24253004. D.P.B. was supported by grants NASA-NNX12AF54G, JPL-RSA 1453175, and NSF AST-1211875. B.S.G. and A.G. were supported by NSF grant AST 110347. B.S.G., A.G., and R.P.G. were supported by NASA grant NNX12AB99G.en
dc.description.abstractWe reanalyze microlensing events in the published list of anomalous events that were observed from the Optical Gravitational Lensing Experiment (OGLE) lensing survey conducted during the 2004–2008 period. In order to check the existence of possible degenerate solutions and extract extra information, we conduct analyses based on combined data from other survey and follow-up observation and consider higher-order effects. Among the analyzed events, we present analyses of eight events for which either new solutions are identified or additional information is obtained. We find that the previous binary-source interpretations of five events are better interpreted by binary-lens models. These events include OGLE-2006-BLG-238, OGLE-2007-BLG-159, OGLE-2007-BLG-491, OGLE-2008-BLG-143, and OGLE-2008-BLG-210. With additional data covering caustic crossings, we detect finite-source effects for six events including OGLE-2006-BLG-215, OGLE-2006-BLG-238, OGLE-2006-BLG-450, OGLE-2008-BLG-143, OGLE-2008-BLG-210, and OGLE-2008-BLG-513. Among them, we are able to measure the Einstein radii of three events for which multi-band data are available. These events are OGLE-2006-BLG-238, OGLE-2008-BLG-210, and OGLE-2008-BLG-513. For OGLE-2008-BLG-143, we detect higher-order effects induced by the changes of the observer's position caused by the orbital motion of the Earth around the Sun. In addition, we present degenerate solutions resulting from the known close/wide or ecliptic degeneracy. Finally, we note that the masses of the binary companions of the lenses of OGLE-2006-BLG-450 and OGLE-2008-BLG-210 are in the brown-dwarf regime.
dc.language.isoeng
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2015. The American Astronomical Society. All rights reserved.en
dc.subjectBinaries: closeen
dc.subjectGravitational lensing: microen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleReanalyses of anomalous gravitational microlensing events in the OGLE-III early warning system database with combined dataen
dc.typeJournal articleen
dc.contributor.sponsorThe Royal Societyen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorThe Royal Societyen
dc.contributor.sponsorPPARC - Now STFCen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1088/0004-637X/804/1/38
dc.description.statusPeer revieweden
dc.identifier.urlhttp://adsabs.harvard.edu/abs/2015ApJ...804...38Jen
dc.identifier.grantnumberUF100010 / UF130581en
dc.identifier.grantnumberST/J001651/1en
dc.identifier.grantnumber516002.K501/RH/kken
dc.identifier.grantnumberPP/D000890/1en
dc.identifier.grantnumberST/K001515/1en
dc.identifier.grantnumberST/M001296/1en
dc.identifier.grantnumberPP/F000065/1en


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