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OGLE-2018-BLG-0022 : a nearby M-dwarf binary

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dc.contributor.authorStreet, R. A.
dc.contributor.authorBachelet, E.
dc.contributor.authorTsapras, Y.
dc.contributor.authorHundertmark, M. P. G.
dc.contributor.authorBozza, V.
dc.contributor.authorDominik, M.
dc.contributor.authorBramich, D. M.
dc.contributor.authorCassan, A.
dc.contributor.authorHorne, K.
dc.contributor.authorMao, S.
dc.contributor.authorSaha, A.
dc.contributor.authorWambsganss, J.
dc.contributor.authorZang, Weicheng
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorLonga-Peña, P.
dc.contributor.authorPeixinho, N.
dc.contributor.authorSajadian, S.
dc.contributor.authorBurgdorf, M. J.
dc.contributor.authorCampbell-White, J.
dc.contributor.authorDib, S.
dc.contributor.authorEvans, D. F.
dc.contributor.authorFujii, Y. I.
dc.contributor.authorHinse, T. C.
dc.contributor.authorKhalouei, E.
dc.contributor.authorLowry, S.
dc.contributor.authorRahvar, S.
dc.contributor.authorRabus, M.
dc.contributor.authorSkottfelt, J.
dc.contributor.authorSnodgrass, C.
dc.contributor.authorSouthworth, J.
dc.contributor.authorTregloan-Reed, J.
dc.date.accessioned2019-05-01T11:30:01Z
dc.date.available2019-05-01T11:30:01Z
dc.date.issued2019-06
dc.identifier.citationStreet , R A , Bachelet , E , Tsapras , Y , Hundertmark , M P G , Bozza , V , Dominik , M , Bramich , D M , Cassan , A , Horne , K , Mao , S , Saha , A , Wambsganss , J , Zang , W , Jørgensen , U G , Longa-Peña , P , Peixinho , N , Sajadian , S , Burgdorf , M J , Campbell-White , J , Dib , S , Evans , D F , Fujii , Y I , Hinse , T C , Khalouei , E , Lowry , S , Rahvar , S , Rabus , M , Skottfelt , J , Snodgrass , C , Southworth , J & Tregloan-Reed , J 2019 , ' OGLE-2018-BLG-0022 : a nearby M-dwarf binary ' , Astronomical Journal , vol. 157 , no. 6 , 215 . https://doi.org/10.3847/1538-3881/ab1538en
dc.identifier.issn0004-6256
dc.identifier.otherPURE: 258765275
dc.identifier.otherPURE UUID: 77f41e5d-1385-47db-b694-ffcc95965baa
dc.identifier.otherBibCode: 2019arXiv190308733S
dc.identifier.otherWOS: 000467291600001
dc.identifier.otherScopus: 85072261365
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996697
dc.identifier.urihttps://hdl.handle.net/10023/17623
dc.descriptionFunding: UK STFC grant ST/R000824/1 (KH).en
dc.description.abstractWe report observations of the binary microlensing event OGLE-2018-BLG-0022, provided by the Robotic Observations of Microlensing Events (ROME)/Reactive Event Assessment (REA) Survey, which indicate that the lens is a low-mass binary star consisting of M3 (0.375 ± 0.020 M ⊙) and M7 (0.098 ± 0.005 M ⊙) components. The lens is unusually close, at 0.998 ± 0.047 kpc, compared with the majority of microlensing events, and despite its intrinsically low luminosity, it is likely that adaptive optics observations in the near future will be able to provide an independent confirmation of the lens masses.
dc.format.extent11
dc.language.isoeng
dc.relation.ispartofAstronomical Journalen
dc.rights© 2019, American Astronomical Society. 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/10.3847/1538-3881/ab1538en
dc.subjectBinaries: generalen
dc.subjectGravitational lensing: microen
dc.subjectTechniques: photometricen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subject3rd-DASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleOGLE-2018-BLG-0022 : a nearby M-dwarf binaryen
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/10.3847/1538-3881/ab1538
dc.description.statusPeer revieweden
dc.identifier.urlhttp://adsabs.harvard.edu/abs/2019arXiv190308733Sen
dc.identifier.grantnumberST/R00824/1en


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