Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud
- Autores
- Piatti, Andres Eduardo
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Small Magellanic Cloud (SMC) has recently been found to harbour an increase of more than 200 per cent in its known cluster population. Here, we provide solid evidence that this unprecedented number of clusters could be greatly overestimated. On the one hand, the fully automatic procedure used to identify such an enormous cluster candidate sample did not recover ~50 per cent, on average, of the known relatively bright clusters located in the SMC main body. On the other hand, the number of new cluster candidates per time unit as a function of time is noticeably different from the intrinsic SMC cluster frequency (CF), which should not be the case if these new detections were genuine physical systems.We found additionally that the SMCCF varies spatially, in such a way that it resembles an outside-in process coupled with the effects of a relatively recent interaction with the Large Magellanic Cloud. By assuming that clusters and field stars share the same formation history, we showed for the first time that the cluster dissolution rate also depends on position in the galaxy. The cluster dissolution becomes higher as the concentration of galaxy mass increases or if external tidal forces are present.
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina - Materia
-
GALAXIES: INDIVIDUAL: SMC
GALAXIES: STAR CLUSTERS: GENERAL
TECHNIQUES: PHOTOMETRIC - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/164424
Ver los metadatos del registro completo
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Towards a comprehensive knowledge of the star cluster population in the Small Magellanic CloudPiatti, Andres EduardoGALAXIES: INDIVIDUAL: SMCGALAXIES: STAR CLUSTERS: GENERALTECHNIQUES: PHOTOMETRIChttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1The Small Magellanic Cloud (SMC) has recently been found to harbour an increase of more than 200 per cent in its known cluster population. Here, we provide solid evidence that this unprecedented number of clusters could be greatly overestimated. On the one hand, the fully automatic procedure used to identify such an enormous cluster candidate sample did not recover ~50 per cent, on average, of the known relatively bright clusters located in the SMC main body. On the other hand, the number of new cluster candidates per time unit as a function of time is noticeably different from the intrinsic SMC cluster frequency (CF), which should not be the case if these new detections were genuine physical systems.We found additionally that the SMCCF varies spatially, in such a way that it resembles an outside-in process coupled with the effects of a relatively recent interaction with the Large Magellanic Cloud. By assuming that clusters and field stars share the same formation history, we showed for the first time that the cluster dissolution rate also depends on position in the galaxy. The cluster dissolution becomes higher as the concentration of galaxy mass increases or if external tidal forces are present.Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaOxford University Press2018-07info: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/11336/164424Piatti, Andres Eduardo; Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 478; 1; 7-2018; 784-7900035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/478/1/784/5032346info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1249info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1805.04017info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:44:14Zoai:ri.conicet.gov.ar:11336/164424instacron: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 10:44:14.545CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud |
title |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud |
spellingShingle |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud Piatti, Andres Eduardo GALAXIES: INDIVIDUAL: SMC GALAXIES: STAR CLUSTERS: GENERAL TECHNIQUES: PHOTOMETRIC |
title_short |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud |
title_full |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud |
title_fullStr |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud |
title_full_unstemmed |
Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud |
title_sort |
Towards a comprehensive knowledge of the star cluster population in 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 GALAXIES: STAR CLUSTERS: GENERAL TECHNIQUES: PHOTOMETRIC |
topic |
GALAXIES: INDIVIDUAL: SMC GALAXIES: STAR CLUSTERS: GENERAL TECHNIQUES: PHOTOMETRIC |
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 Small Magellanic Cloud (SMC) has recently been found to harbour an increase of more than 200 per cent in its known cluster population. Here, we provide solid evidence that this unprecedented number of clusters could be greatly overestimated. On the one hand, the fully automatic procedure used to identify such an enormous cluster candidate sample did not recover ~50 per cent, on average, of the known relatively bright clusters located in the SMC main body. On the other hand, the number of new cluster candidates per time unit as a function of time is noticeably different from the intrinsic SMC cluster frequency (CF), which should not be the case if these new detections were genuine physical systems.We found additionally that the SMCCF varies spatially, in such a way that it resembles an outside-in process coupled with the effects of a relatively recent interaction with the Large Magellanic Cloud. By assuming that clusters and field stars share the same formation history, we showed for the first time that the cluster dissolution rate also depends on position in the galaxy. The cluster dissolution becomes higher as the concentration of galaxy mass increases or if external tidal forces are present. Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina |
description |
The Small Magellanic Cloud (SMC) has recently been found to harbour an increase of more than 200 per cent in its known cluster population. Here, we provide solid evidence that this unprecedented number of clusters could be greatly overestimated. On the one hand, the fully automatic procedure used to identify such an enormous cluster candidate sample did not recover ~50 per cent, on average, of the known relatively bright clusters located in the SMC main body. On the other hand, the number of new cluster candidates per time unit as a function of time is noticeably different from the intrinsic SMC cluster frequency (CF), which should not be the case if these new detections were genuine physical systems.We found additionally that the SMCCF varies spatially, in such a way that it resembles an outside-in process coupled with the effects of a relatively recent interaction with the Large Magellanic Cloud. By assuming that clusters and field stars share the same formation history, we showed for the first time that the cluster dissolution rate also depends on position in the galaxy. The cluster dissolution becomes higher as the concentration of galaxy mass increases or if external tidal forces are present. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-07 |
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/11336/164424 Piatti, Andres Eduardo; Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 478; 1; 7-2018; 784-790 0035-8711 1365-2966 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/164424 |
identifier_str_mv |
Piatti, Andres Eduardo; Towards a comprehensive knowledge of the star cluster population in the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 478; 1; 7-2018; 784-790 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/478/1/784/5032346 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1249 info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1805.04017 |
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 |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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