Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star

We analyze the extreme high-magnification microlensing event OGLE-2008-BLG-279, which peaked at a maximum magnification of A ~ 1600 on 30 May 2008. The peak of this event exhibits both finite-source effects and terrestrial parallax, from which we determine the mass of the lens, M_l=0.64 +/- 0.10 M_S...

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Detalles Bibliográficos
Autores: Yee, J.C., Pietrzynski, G., Szewczyk, O.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/237047
Acceso en línea:https://hdl.handle.net/10533/237047
Access Level:acceso abierto
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spelling Szewczyk, O.Pietrzynski, G.Yee, J.C.200910.1088/0004-637X/703/2/2082https://hdl.handle.net/10533/237047http://purl.org/coar/access_right/c_abf2Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens StarYee, J.C.Pietrzynski, G.Szewczyk, O.2019-12-18T18:14:38Z2022-07-07T22:02:00Z2019-12-18T18:14:38Z2022-07-07T22:02:00Z2009We analyze the extreme high-magnification microlensing event OGLE-2008-BLG-279, which peaked at a maximum magnification of A ~ 1600 on 30 May 2008. The peak of this event exhibits both finite-source effects and terrestrial parallax, from which we determine the mass of the lens, M_l=0.64 +/- 0.10 M_Sun, and its distance, D_l = 4.0 +/- 0.6. We rule out Jupiter-mass planetary companions to the lens star for projected separations in the range 0.5-20 AU. More generally, we find that this event was sensitive to planets with masses as small as 0.2 M_Earth ~= 2 M_Mars with projected separations near the Einstein ring (~3 AU).FONDAPFONDAP1501000315010003virtual::37823-1WOS:000269929500074https://hdl.handle.net/10533/237047enginstname: Conicytreponame: Repositorio Digital RI2.010.1088/0004-637X/703/2/2082info:eu-repo/grantAgreement/Fondap/15010003https://arxiv.org/abs/0907.5411Atribución-NoComercial-SinDerivadas 3.0 Chilehttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/info:eu-repo/semantics/openAccessExtreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens StarAstrophysical JournalArticuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttps://hdl.handle.net/10533/237047http://purl.org/coar/resource_type/c_2df8fbb1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::37823-1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::37823-110533/237047oai:repositorio.anid.cl:10533/2370472023-07-24 16:12:37.764https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
dc.title.journal.none.fl_str_mv Astrophysical Journal
title Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
spellingShingle Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
Yee, J.C.
title_short Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
title_full Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
title_fullStr Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
title_full_unstemmed Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
title_sort Extreme Magnification Microlensing Event OGLE-2008-BLG-279: Strong Limits on Planetary Companions to the Lens Star
dc.creator.none.fl_str_mv Yee, J.C.
Pietrzynski, G.
Szewczyk, O.
author Yee, J.C.
author_facet Yee, J.C.
Pietrzynski, G.
Szewczyk, O.
author_role author
author2 Pietrzynski, G.
Szewczyk, O.
author2_role author
author
description We analyze the extreme high-magnification microlensing event OGLE-2008-BLG-279, which peaked at a maximum magnification of A ~ 1600 on 30 May 2008. The peak of this event exhibits both finite-source effects and terrestrial parallax, from which we determine the mass of the lens, M_l=0.64 +/- 0.10 M_Sun, and its distance, D_l = 4.0 +/- 0.6. We rule out Jupiter-mass planetary companions to the lens star for projected separations in the range 0.5-20 AU. More generally, we find that this event was sensitive to planets with masses as small as 0.2 M_Earth ~= 2 M_Mars with projected separations near the Einstein ring (~3 AU).
publishDate 2009
dc.date.issued.none.fl_str_mv 2009
dc.date.accessioned.none.fl_str_mv 2019-12-18T18:14:38Z
2022-07-07T22:02:00Z
dc.date.available.none.fl_str_mv 2019-12-18T18:14:38Z
2022-07-07T22:02:00Z
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
format article
status_str publishedVersion
dc.identifier.folio.none.fl_str_mv 15010003
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dc.identifier.idwos.none.fl_str_mv WOS:000269929500074
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/237047
identifier_str_mv 15010003
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url https://hdl.handle.net/10533/237047
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 10.1088/0004-637X/703/2/2082
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondap/15010003
dc.relation.uri.none.fl_str_mv https://arxiv.org/abs/0907.5411
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
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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