OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data

We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed solely by survey experiments, we could uniquely determine the mass of the lens and distance to it by simultaneously meas...

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Detalles Bibliográficos
Autores: Hwang, K.H, Pietrzyński, G.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/237457
Acceso en línea:https://hdl.handle.net/10533/237457
Access Level:acceso abierto
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spelling Pietrzyński, G.Hwang, K.H201110.1111/j.1365-2966.2011.18206.xhttps://hdl.handle.net/10533/237457http://purl.org/coar/access_right/c_abf2OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey dataHwang, K.HPietrzyński, G.2019-12-18T18:15:31Z2022-07-07T23:40:44Z2019-12-18T18:15:31Z2022-07-07T23:40:44Z2011We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed solely by survey experiments, we could uniquely determine the mass of the lens and distance to it by simultaneously measuring the Einstein radius and lens parallax. From this, we find that the lens system is composed of M-type dwarfs with masses (0.50 ± 0.07) and (0.15 ± 0.02) M⊙ located in the Galactic disc with a distance of ∼1.8 kpc toward the Galactic bulge direction. The event demonstrates that physical lens parameters of binary-lens events can be routinely determined from future high-cadence lensing surveys and thus microlensing can provide a new way to study Galactic binaries.FONDAPFONDAP1501000315010003virtual::15180-1WOS:000289904600042https://hdl.handle.net/10533/237457enginstname: Conicytreponame: Repositorio Digital RI2.010.1111/j.1365-2966.2011.18206.xinfo:eu-repo/grantAgreement/Fondap/15010003https://academic.oup.com/mnras/article/413/2/1244/1068660/Atribución-NoComercial-SinDerivadas 3.0 Chilehttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/info:eu-repo/semantics/openAccessOGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey dataMonthly Notices Of The Royal Astronomical SocietyArticuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttps://hdl.handle.net/10533/237457http://purl.org/coar/resource_type/c_2df8fbb1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::15180-1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::15180-110533/237457oai:repositorio.anid.cl:10533/2374572023-07-24 19:15:35.05https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
dc.title.journal.none.fl_str_mv Monthly Notices Of The Royal Astronomical Society
title OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
spellingShingle OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
Hwang, K.H
title_short OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
title_full OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
title_fullStr OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
title_full_unstemmed OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
title_sort OGLE-2009-BLG-023/MOA-2009-BLG-028: characterization of a binary microlensing event based on survey data
dc.creator.none.fl_str_mv Hwang, K.H
Pietrzyński, G.
author Hwang, K.H
author_facet Hwang, K.H
Pietrzyński, G.
author_role author
author2 Pietrzyński, G.
author2_role author
description We report the result of the analysis of the light curve of a caustic-crossing binary-lens microlensing event OGLE-2009-BLG-023/MOA-2009-BLG-028. Even though the event was observed solely by survey experiments, we could uniquely determine the mass of the lens and distance to it by simultaneously measuring the Einstein radius and lens parallax. From this, we find that the lens system is composed of M-type dwarfs with masses (0.50 ± 0.07) and (0.15 ± 0.02) M⊙ located in the Galactic disc with a distance of ∼1.8 kpc toward the Galactic bulge direction. The event demonstrates that physical lens parameters of binary-lens events can be routinely determined from future high-cadence lensing surveys and thus microlensing can provide a new way to study Galactic binaries.
publishDate 2011
dc.date.issued.none.fl_str_mv 2011
dc.date.accessioned.none.fl_str_mv 2019-12-18T18:15:31Z
2022-07-07T23:40:44Z
dc.date.available.none.fl_str_mv 2019-12-18T18:15:31Z
2022-07-07T23:40:44Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.folio.none.fl_str_mv 15010003
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dc.identifier.idwos.none.fl_str_mv WOS:000289904600042
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/237457
identifier_str_mv 15010003
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url https://hdl.handle.net/10533/237457
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1111/j.1365-2966.2011.18206.x
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondap/15010003
dc.relation.uri.none.fl_str_mv https://academic.oup.com/mnras/article/413/2/1244/1068660/
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
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rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
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eu_rights_str_mv openAccess
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repository.mail.fl_str_mv aletelier@anid.cl
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