Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud

Autores
Piatti, Andres Eduardo; Santos Jr., Joao F. C.; Claria Olmedo, Juan Jose; Bica, Eduardo; Sarajedini, Ata; Geisler, Doug
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Colour–magnitude diagrams are presented for the first time for L32, L38, K28 (L43), K44 (L68) and L116, which are clusters projected on to the outer parts of the Small Magellanic Cloud (SMC). The photometry was carried out in the Washington system C and T1 filters, allowing the determination of ages by means of the magnitude difference between the red giant clump and the main-sequence turn-off, and metallicities from the red giant branch locus. The clusters have ages in the range 2–6 Gyr, and metallicities in the range −1.65<[Fe/H]<−1.10, increasing the sample of intermediate-age clusters in the SMC. L116, the outermost cluster projected on to the SMC, is a foreground cluster, and somewhat closer to us than the Large Magellanic Cloud. Our results, combined with those for other clusters in the literature, show epochs of sudden chemical enrichment in the age–metallicity plane, which favour a bursting star formation history as opposed to a continuous one for the SMC.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Santos Jr., Joao F. C.. Universidade Federal do Minas Gerais; Brasil
Fil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina
Fil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Sarajedini, Ata. Wesleyan University; Estados Unidos
Fil: Geisler, Doug. Universidad de Concepción; Chile
Materia
Small Magellanic Cloud
Star cluster
Photometry
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:11336/22487
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic CloudPiatti, Andres EduardoSantos Jr., Joao F. C.Claria Olmedo, Juan JoseBica, EduardoSarajedini, AtaGeisler, DougSmall Magellanic CloudStar clusterPhotometryhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Colour–magnitude diagrams are presented for the first time for L32, L38, K28 (L43), K44 (L68) and L116, which are clusters projected on to the outer parts of the Small Magellanic Cloud (SMC). The photometry was carried out in the Washington system C and T1 filters, allowing the determination of ages by means of the magnitude difference between the red giant clump and the main-sequence turn-off, and metallicities from the red giant branch locus. The clusters have ages in the range 2–6 Gyr, and metallicities in the range −1.65<[Fe/H]<−1.10, increasing the sample of intermediate-age clusters in the SMC. L116, the outermost cluster projected on to the SMC, is a foreground cluster, and somewhat closer to us than the Large Magellanic Cloud. Our results, combined with those for other clusters in the literature, show epochs of sudden chemical enrichment in the age–metallicity plane, which favour a bursting star formation history as opposed to a continuous one for the SMC.Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Santos Jr., Joao F. C.. Universidade Federal do Minas Gerais; BrasilFil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; ArgentinaFil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; BrasilFil: Sarajedini, Ata. Wesleyan University; Estados UnidosFil: Geisler, Doug. Universidad de Concepción; ChileOxford University Press2001-08info: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/11336/22487Piatti, Andres Eduardo; Santos Jr., Joao F. C.; Claria Olmedo, Juan Jose; Bica, Eduardo; Sarajedini, Ata; et al.; Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 325; 2; 8-2001; 792-8020035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1046/j.1365-8711.2001.04503.xinfo:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.2001.04503.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:05Zoai:ri.conicet.gov.ar:11336/22487instacron: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 09:44:05.768CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
title Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
spellingShingle Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
Piatti, Andres Eduardo
Small Magellanic Cloud
Star cluster
Photometry
title_short Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
title_full Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
title_fullStr Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
title_full_unstemmed Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
title_sort Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
Santos Jr., Joao F. C.
Claria Olmedo, Juan Jose
Bica, Eduardo
Sarajedini, Ata
Geisler, Doug
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
Santos Jr., Joao F. C.
Claria Olmedo, Juan Jose
Bica, Eduardo
Sarajedini, Ata
Geisler, Doug
author_role author
author2 Santos Jr., Joao F. C.
Claria Olmedo, Juan Jose
Bica, Eduardo
Sarajedini, Ata
Geisler, Doug
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Small Magellanic Cloud
Star cluster
Photometry
topic Small Magellanic Cloud
Star cluster
Photometry
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Colour–magnitude diagrams are presented for the first time for L32, L38, K28 (L43), K44 (L68) and L116, which are clusters projected on to the outer parts of the Small Magellanic Cloud (SMC). The photometry was carried out in the Washington system C and T1 filters, allowing the determination of ages by means of the magnitude difference between the red giant clump and the main-sequence turn-off, and metallicities from the red giant branch locus. The clusters have ages in the range 2–6 Gyr, and metallicities in the range −1.65<[Fe/H]<−1.10, increasing the sample of intermediate-age clusters in the SMC. L116, the outermost cluster projected on to the SMC, is a foreground cluster, and somewhat closer to us than the Large Magellanic Cloud. Our results, combined with those for other clusters in the literature, show epochs of sudden chemical enrichment in the age–metallicity plane, which favour a bursting star formation history as opposed to a continuous one for the SMC.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Santos Jr., Joao F. C.. Universidade Federal do Minas Gerais; Brasil
Fil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina
Fil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Sarajedini, Ata. Wesleyan University; Estados Unidos
Fil: Geisler, Doug. Universidad de Concepción; Chile
description Colour–magnitude diagrams are presented for the first time for L32, L38, K28 (L43), K44 (L68) and L116, which are clusters projected on to the outer parts of the Small Magellanic Cloud (SMC). The photometry was carried out in the Washington system C and T1 filters, allowing the determination of ages by means of the magnitude difference between the red giant clump and the main-sequence turn-off, and metallicities from the red giant branch locus. The clusters have ages in the range 2–6 Gyr, and metallicities in the range −1.65<[Fe/H]<−1.10, increasing the sample of intermediate-age clusters in the SMC. L116, the outermost cluster projected on to the SMC, is a foreground cluster, and somewhat closer to us than the Large Magellanic Cloud. Our results, combined with those for other clusters in the literature, show epochs of sudden chemical enrichment in the age–metallicity plane, which favour a bursting star formation history as opposed to a continuous one for the SMC.
publishDate 2001
dc.date.none.fl_str_mv 2001-08
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/11336/22487
Piatti, Andres Eduardo; Santos Jr., Joao F. C.; Claria Olmedo, Juan Jose; Bica, Eduardo; Sarajedini, Ata; et al.; Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 325; 2; 8-2001; 792-802
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22487
identifier_str_mv Piatti, Andres Eduardo; Santos Jr., Joao F. C.; Claria Olmedo, Juan Jose; Bica, Eduardo; Sarajedini, Ata; et al.; Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 325; 2; 8-2001; 792-802
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/url/https://academic.oup.com/mnras/article-lookup/doi/10.1046/j.1365-8711.2001.04503.x
info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.2001.04503.x
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
_version_ 1844613387965693952
score 13.070432

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