Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud

Autores
Piatti, Andres Eduardo; Keller, Stefan C.; Mackey, A. Dougal; Da Costa, Gary S.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present Gemini South GMOS g, i photometry of 14 intermediate-age Large Magellanic Cloud (LMC) star clusters, namely: NGC 2155, 2161, 2162, 2173, 2203, 2209, 2213, 2231, 2249, Hodge 6, SL 244, 505, 674, and 769, as part of a continuing project to investigate the extended main-sequence turn-off (EMSTO) phenomenon. Extensive artificial star tests were made over the observed field of view. These tests reveal the observed behaviour of photometric errors with magnitude and crowding. The cluster stellar density radial profiles were traced from star counts over the extent of the observed field. We adopt cluster radii and build colour–magnitude diagrams (CMDs) with cluster features clearly identified. We used the cluster (g, g − i) CMDs to estimate ages from the matching of theoretical isochrones. The studied LMC clusters are confirmed to be intermediate-age clusters, which range in age 9.10 < log(t) < 9.60. NGC 2162 and NGC 2249 look like new EMSTO candidates, in addition to NGC 2209, on the basis of having dual red clumps.
Fil: Piatti, Andres Eduardo. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Keller, Stefan C.. Australian National University; Australia
Fil: Mackey, A. Dougal. Australian National University; Australia
Fil: Da Costa, Gary S.. Australian National University; Australia
Materia
Galaxies: individual: LMC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/35042
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/35042
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic CloudPiatti, Andres EduardoKeller, Stefan C.Mackey, A. DougalDa Costa, Gary S.Galaxies: individual: LMChttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present Gemini South GMOS g, i photometry of 14 intermediate-age Large Magellanic Cloud (LMC) star clusters, namely: NGC 2155, 2161, 2162, 2173, 2203, 2209, 2213, 2231, 2249, Hodge 6, SL 244, 505, 674, and 769, as part of a continuing project to investigate the extended main-sequence turn-off (EMSTO) phenomenon. Extensive artificial star tests were made over the observed field of view. These tests reveal the observed behaviour of photometric errors with magnitude and crowding. The cluster stellar density radial profiles were traced from star counts over the extent of the observed field. We adopt cluster radii and build colour–magnitude diagrams (CMDs) with cluster features clearly identified. We used the cluster (g, g − i) CMDs to estimate ages from the matching of theoretical isochrones. The studied LMC clusters are confirmed to be intermediate-age clusters, which range in age 9.10 < log(t) < 9.60. NGC 2162 and NGC 2249 look like new EMSTO candidates, in addition to NGC 2209, on the basis of having dual red clumps.Fil: Piatti, Andres Eduardo. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Keller, Stefan C.. Australian National University; AustraliaFil: Mackey, A. Dougal. Australian National University; AustraliaFil: Da Costa, Gary S.. Australian National University; AustraliaOxford University Press2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/35042Piatti, Andres Eduardo; Keller, Stefan C.; Mackey, A. Dougal; Da Costa, Gary S.; Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 444; 7-2014; 1425-14410035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stu1535info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1407.8091info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:46:48Zoai:ri.conicet.gov.ar:11336/35042instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:46:49.117CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
title Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
spellingShingle Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
Piatti, Andres Eduardo
Galaxies: individual: LMC
title_short Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
title_full Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
title_fullStr Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
title_full_unstemmed Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
title_sort Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
Keller, Stefan C.
Mackey, A. Dougal
Da Costa, Gary S.
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
Keller, Stefan C.
Mackey, A. Dougal
Da Costa, Gary S.
author_role author
author2 Keller, Stefan C.
Mackey, A. Dougal
Da Costa, Gary S.
author2_role author
author
author
dc.subject.none.fl_str_mv Galaxies: individual: LMC
topic Galaxies: individual: LMC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present Gemini South GMOS g, i photometry of 14 intermediate-age Large Magellanic Cloud (LMC) star clusters, namely: NGC 2155, 2161, 2162, 2173, 2203, 2209, 2213, 2231, 2249, Hodge 6, SL 244, 505, 674, and 769, as part of a continuing project to investigate the extended main-sequence turn-off (EMSTO) phenomenon. Extensive artificial star tests were made over the observed field of view. These tests reveal the observed behaviour of photometric errors with magnitude and crowding. The cluster stellar density radial profiles were traced from star counts over the extent of the observed field. We adopt cluster radii and build colour–magnitude diagrams (CMDs) with cluster features clearly identified. We used the cluster (g, g − i) CMDs to estimate ages from the matching of theoretical isochrones. The studied LMC clusters are confirmed to be intermediate-age clusters, which range in age 9.10 < log(t) < 9.60. NGC 2162 and NGC 2249 look like new EMSTO candidates, in addition to NGC 2209, on the basis of having dual red clumps.
Fil: Piatti, Andres Eduardo. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Keller, Stefan C.. Australian National University; Australia
Fil: Mackey, A. Dougal. Australian National University; Australia
Fil: Da Costa, Gary S.. Australian National University; Australia
description We present Gemini South GMOS g, i photometry of 14 intermediate-age Large Magellanic Cloud (LMC) star clusters, namely: NGC 2155, 2161, 2162, 2173, 2203, 2209, 2213, 2231, 2249, Hodge 6, SL 244, 505, 674, and 769, as part of a continuing project to investigate the extended main-sequence turn-off (EMSTO) phenomenon. Extensive artificial star tests were made over the observed field of view. These tests reveal the observed behaviour of photometric errors with magnitude and crowding. The cluster stellar density radial profiles were traced from star counts over the extent of the observed field. We adopt cluster radii and build colour–magnitude diagrams (CMDs) with cluster features clearly identified. We used the cluster (g, g − i) CMDs to estimate ages from the matching of theoretical isochrones. The studied LMC clusters are confirmed to be intermediate-age clusters, which range in age 9.10 < log(t) < 9.60. NGC 2162 and NGC 2249 look like new EMSTO candidates, in addition to NGC 2209, on the basis of having dual red clumps.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/35042
Piatti, Andres Eduardo; Keller, Stefan C.; Mackey, A. Dougal; Da Costa, Gary S.; Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 444; 7-2014; 1425-1441
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/35042
identifier_str_mv Piatti, Andres Eduardo; Keller, Stefan C.; Mackey, A. Dougal; Da Costa, Gary S.; Gemini/GMOS photometry of intermediate-age star clusters in the Large Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 444; 7-2014; 1425-1441
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stu1535
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1407.8091
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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