Artykuł w czasopiśmie
Brak miniatury
Licencja
 

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

Uproszczony widok
cris.lastimport.scopus2024-02-12T20:24:17Z
dc.abstract.enWe 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_{\star 1} = 0.87 ± 0.12 M_{⊙} and M_{\star 2} = 0.77 ± 0.11 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.affiliationUniwersytet Warszawski
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorSzymański, Michał
dc.contributor.authorSoszyński, Igor
dc.contributor.authorSkowron, Jan
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorTsapras, Y.
dc.contributor.authorCassan, A.
dc.contributor.authorRanc, C.
dc.contributor.authorBachelet, E.
dc.contributor.authorStreet, R.
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.authorJaimes, R. Figuera
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, Przemysław
dc.contributor.authorPoleski, Radosław
dc.contributor.authorUlaczyk, Krzysztof
dc.contributor.authorPawlak, Michał
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.authorNovati, S. Calchi
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.contributor.authorJaimes, R. Figuera
dc.contributor.authorNovati, S. Calchi
dc.contributor.authorSaito, T. O.
dc.date.accessioned2024-01-24T16:41:42Z
dc.date.available2024-01-24T16:41:42Z
dc.date.copyright2019-06-06
dc.date.issued2019
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number4
dc.description.versionORIGINAL_AUTHOR
dc.description.volume487
dc.identifier.doi10.1093/MNRAS/STZ1404
dc.identifier.issn0035-8711
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/100867
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2019MNRAS.487.4603T
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.pages4603-4614
dc.rightsOther
dc.sciencecloudnosend
dc.titleAn analysis of binary microlensing event OGLE-2015-BLG-0060
dc.typeJournalArticle
dspace.entity.typePublication