An in-depth view of the metallicity distribution of the Small Magellanic Cloud

Autores
Piatti, Andres Eduardo
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The spatial metallicity distribution of star clusters in the Small Magellanic Cloud(SMC) has recently been found to correlate as a V-shaped function with the semi-major axis of an elliptical framework proposed to assume a projected galaxy flattening.We report results on the impact that the use of such a framework can produce onour understanding of the SMC formation and its chemical enrichment. We show thatclusters with similar semi-major axes are placed at a very different distances fromthe SMC centre. The recently claimed bimodal metallicity distribution of clustersprojected on the innermost SMC regions and the V-shaped metallicity gradient fadeaway when actual distances are used. Although a large dispersion prevails, clustersolder than ∼ 1 Gyr exhibit a shallow metallicity gradient, caused by slightly differentspatial distributions of clusters younger and older than ∼ 4 Gyr; the former beingmore centrally concentrated and having a mean metallicity ([Fe/H]) ∼ 0.15 dex moremetal-rich than that of older clusters. This metallicity gradient does not show anydependence with the position angle, except for clusters placed beyond 11 kpc, whichare located in the eastern side of the galaxy.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
Materia
galaxies: individual
SMC
star clusters
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:11336/230556
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling An in-depth view of the metallicity distribution of the Small Magellanic CloudPiatti, Andres Eduardogalaxies: individualSMCstar clustershttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1The spatial metallicity distribution of star clusters in the Small Magellanic Cloud(SMC) has recently been found to correlate as a V-shaped function with the semi-major axis of an elliptical framework proposed to assume a projected galaxy flattening.We report results on the impact that the use of such a framework can produce onour understanding of the SMC formation and its chemical enrichment. We show thatclusters with similar semi-major axes are placed at a very different distances fromthe SMC centre. The recently claimed bimodal metallicity distribution of clustersprojected on the innermost SMC regions and the V-shaped metallicity gradient fadeaway when actual distances are used. Although a large dispersion prevails, clustersolder than ∼ 1 Gyr exhibit a shallow metallicity gradient, caused by slightly differentspatial distributions of clusters younger and older than ∼ 4 Gyr; the former beingmore centrally concentrated and having a mean metallicity ([Fe/H]) ∼ 0.15 dex moremetal-rich than that of older clusters. This metallicity gradient does not show anydependence with the position angle, except for clusters placed beyond 11 kpc, whichare located in the eastern side of the galaxy.Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; ArgentinaOxford University Press2023-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/230556Piatti, Andres Eduardo; An in-depth view of the metallicity distribution of the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 526; 1; 9-2023; 391-3950035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/526/1/391/7271814info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad2786info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:01Zoai:ri.conicet.gov.ar:11336/230556instacron: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 09:45:01.845CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An in-depth view of the metallicity distribution of the Small Magellanic Cloud
title An in-depth view of the metallicity distribution of the Small Magellanic Cloud
spellingShingle An in-depth view of the metallicity distribution of the Small Magellanic Cloud
Piatti, Andres Eduardo
galaxies: individual
SMC
star clusters
title_short An in-depth view of the metallicity distribution of the Small Magellanic Cloud
title_full An in-depth view of the metallicity distribution of the Small Magellanic Cloud
title_fullStr An in-depth view of the metallicity distribution of the Small Magellanic Cloud
title_full_unstemmed An in-depth view of the metallicity distribution of the Small Magellanic Cloud
title_sort An in-depth view of the metallicity distribution of the Small Magellanic Cloud
dc.creator.none.fl_str_mv Piatti, Andres Eduardo
author Piatti, Andres Eduardo
author_facet Piatti, Andres Eduardo
author_role author
dc.subject.none.fl_str_mv galaxies: individual
SMC
star clusters
topic galaxies: individual
SMC
star clusters
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The spatial metallicity distribution of star clusters in the Small Magellanic Cloud(SMC) has recently been found to correlate as a V-shaped function with the semi-major axis of an elliptical framework proposed to assume a projected galaxy flattening.We report results on the impact that the use of such a framework can produce onour understanding of the SMC formation and its chemical enrichment. We show thatclusters with similar semi-major axes are placed at a very different distances fromthe SMC centre. The recently claimed bimodal metallicity distribution of clustersprojected on the innermost SMC regions and the V-shaped metallicity gradient fadeaway when actual distances are used. Although a large dispersion prevails, clustersolder than ∼ 1 Gyr exhibit a shallow metallicity gradient, caused by slightly differentspatial distributions of clusters younger and older than ∼ 4 Gyr; the former beingmore centrally concentrated and having a mean metallicity ([Fe/H]) ∼ 0.15 dex moremetal-rich than that of older clusters. This metallicity gradient does not show anydependence with the position angle, except for clusters placed beyond 11 kpc, whichare located in the eastern side of the galaxy.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
description The spatial metallicity distribution of star clusters in the Small Magellanic Cloud(SMC) has recently been found to correlate as a V-shaped function with the semi-major axis of an elliptical framework proposed to assume a projected galaxy flattening.We report results on the impact that the use of such a framework can produce onour understanding of the SMC formation and its chemical enrichment. We show thatclusters with similar semi-major axes are placed at a very different distances fromthe SMC centre. The recently claimed bimodal metallicity distribution of clustersprojected on the innermost SMC regions and the V-shaped metallicity gradient fadeaway when actual distances are used. Although a large dispersion prevails, clustersolder than ∼ 1 Gyr exhibit a shallow metallicity gradient, caused by slightly differentspatial distributions of clusters younger and older than ∼ 4 Gyr; the former beingmore centrally concentrated and having a mean metallicity ([Fe/H]) ∼ 0.15 dex moremetal-rich than that of older clusters. This metallicity gradient does not show anydependence with the position angle, except for clusters placed beyond 11 kpc, whichare located in the eastern side of the galaxy.
publishDate 2023
dc.date.none.fl_str_mv 2023-09
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/11336/230556
Piatti, Andres Eduardo; An in-depth view of the metallicity distribution of the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 526; 1; 9-2023; 391-395
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/230556
identifier_str_mv Piatti, Andres Eduardo; An in-depth view of the metallicity distribution of the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 526; 1; 9-2023; 391-395
0035-8711
1365-2966
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/526/1/391/7271814
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad2786
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
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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