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

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dc.citation.issue4
dc.citation.volume487
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 JP
dc.contributor.authorMarquette JB
dc.contributor.authorEuteneuer E
dc.contributor.authorBramich DM
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 IA
dc.contributor.authorWambsganss J
dc.contributor.authorMróz P
dc.contributor.authorSzymański MK
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 UG
dc.contributor.authorSkottfelt J
dc.contributor.authorPopovas A
dc.contributor.authorCiceri S
dc.contributor.authorKorhonen H
dc.contributor.authorKuffmeier M
dc.contributor.authorEvans DF
dc.contributor.authorPeixinho N
dc.contributor.authorHinse TC
dc.contributor.authorBurgdorf MJ
dc.contributor.authorSouthworth J
dc.contributor.authorTronsgaard R
dc.contributor.authorKerins E
dc.contributor.authorAndersen MI
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 DP
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 MCA
dc.contributor.authorLing CH
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 T
dc.contributor.authorSharan A
dc.contributor.authorShibai H
dc.contributor.authorSullivan DJ
dc.contributor.authorSumi T
dc.contributor.authorSuzuki D
dc.contributor.authorTristram PJ
dc.contributor.authorYamada T
dc.contributor.authorYonehara A
dc.contributor.authorThe RoboNet team
dc.contributor.authorThe OGLE collaboration
dc.contributor.authorThe MiNDSTEp collaboration
dc.contributor.authorThe MOA collaboration
dc.date.accessioned2024-07-24T23:02:28Z
dc.date.available2024-07-24T23:02:28Z
dc.date.issued2019-08
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 = 0.87 pm 0.12 mathrm{M} and M = 0.77 pm 0.11 mathrm{M}. 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.description.confidentialfalse
dc.edition.editionAugust 2019
dc.format.pagination4603-4614
dc.identifier.author-urlhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000475888500013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationTsapras Y, Cassan A, Ranc C, Bachelet E, Street R, Udalski A, Hundertmark M, Bozza V, Beaulieu JP, Marquette JB, Euteneuer E, Bramich DM, Dominik M, Figuera Jaimes R, Horne K, Mao S, Menzies J, Schmidt R, Snodgrass C, Steele IA, Wambsganss J, Mróz P, Szymański MK, Soszyński I, Skowron J, Pietrukowicz P, Kozłowski S, Poleski R, Ulaczyk K, Pawlak M, Jørgensen UG, Skottfelt J, Popovas A, Ciceri S, Korhonen H, Kuffmeier M, Evans DF, Peixinho N, Hinse TC, Burgdorf MJ, Southworth J, Tronsgaard R, Kerins E, Andersen MI, Rahvar S, Wang Y, Wertz O, Rabus M, Calchi Novati S, D'ago G, Scarpetta G, Mancini L, Abe F, Asakura Y, Bennett DP, Bhattacharya A, Donachie M, Evans P, Fukui A, Hirao Y, Itow Y, Kawasaki K, Koshimoto N, Li MCA, Ling CH, Masuda K, Matsubara Y, Muraki Y, Miyazaki S, Nagakane M, Ohnishi K, Rattenbury N, Saito T, Sharan A, Shibai H, Sullivan DJ, Sumi T, Suzuki D, Tristram PJ, Yamada T, Yonehara A. (2019). An analysis of binary microlensing event OGLE-2015-BLG-0060. Monthly Notices of the Royal Astronomical Society. 487. 4. (pp. 4603-4614).
dc.identifier.doi10.1093/mnras/stz1404
dc.identifier.eissn1365-2966
dc.identifier.elements-typejournal-article
dc.identifier.issn0035-8711
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70338
dc.languageEnglish
dc.publisherOxford University Press on behalf of the Royal Astronomical Society
dc.publisher.urihttps://academic.oup.com/mnras/article/487/4/4603/5506772
dc.relation.isPartOfMonthly Notices of the Royal Astronomical Society
dc.rights(c) The author/sen
dc.subjectgravitational lensing: micro
dc.subjectmethods: observational
dc.subjecttechniques: photometric
dc.subjectGalaxy: bulge
dc.titleAn analysis of binary microlensing event OGLE-2015-BLG-0060
dc.typeJournal article
pubs.elements-id425135
pubs.organisational-groupOther
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