The line-of-sight depth of popuous clusters in the Small Magellanic Cloud

Autores
Crowl, Hugh H.; Sarajedini, Ata; Piatti, Andres Eduardo; Geisler, Doug; Bica, Eduardo; Claria Olmedo, Juan Jose; Santos Jr., João F. C.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present an analysis of age, metal abundance and positional data on populous clusters in the Small Magellanic Cloud (SMC) with the ultimate aim of determining the line-of-sight (LOS) depth of the SMC by using these clusters as proxies. Our data set contains 12 objects and is limited to clusters with the highest-quality data for which the ages and abundances are best known and can be placed on an internally consistent scale. We have analyzed the variation of the clusters´ properties with position on the sky and with LOS depth. Based on this analysis, we draw the following conclusions: (1) The observational data indicate that the eastern side of the SMC (facing the large Magellanic Cloud) contains younger and more metal-rich clusters as compared with the western side. This is not a strong correlation because our data set of clusters is necessarily limited, but is suggestive and warrants further studyl. (2) Depending on how the reddening is computed to our clusters, we find a mean distance modulus that ranges from (m-M)o = 18.71 +/- 0.06 to 18.82 +/- 0.05. (3) The intrinsic +/- 1 sigma LOS depth of the SMC populous clusters in our study is between 6 and approximately 12 kpc, depending primarily on whether we adopt the Burstein & Heiles reddenings or those from Schlegel et al. (4) Viewing the SMC as a triaxial galaxy with declination, right ascension and LOS depth as the three axes, we find axial ratios of approximately 1:2:4. Taken together, these conclusions largely agree with those of previous investigator sand underscore the utility of populous star clusters as probes of the structure of the SMC.
Fil: Crowl, Hugh H.. Wesleyan University; Estados Unidos
Fil: Sarajedini, Ata. Wesleyan University; Estados Unidos
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: Geisler, Doug. Universidad de Concepción; Chile
Fil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina
Fil: Santos Jr., João F. C.. Universidade Federal do Minas Gerais; Brasil
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:11336/22468
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/22468
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The line-of-sight depth of popuous clusters in the Small Magellanic CloudCrowl, Hugh H.Sarajedini, AtaPiatti, Andres EduardoGeisler, DougBica, EduardoClaria Olmedo, Juan JoseSantos Jr., João F. C.Small Magellanic CloudStar clusterPhotometryhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present an analysis of age, metal abundance and positional data on populous clusters in the Small Magellanic Cloud (SMC) with the ultimate aim of determining the line-of-sight (LOS) depth of the SMC by using these clusters as proxies. Our data set contains 12 objects and is limited to clusters with the highest-quality data for which the ages and abundances are best known and can be placed on an internally consistent scale. We have analyzed the variation of the clusters´ properties with position on the sky and with LOS depth. Based on this analysis, we draw the following conclusions: (1) The observational data indicate that the eastern side of the SMC (facing the large Magellanic Cloud) contains younger and more metal-rich clusters as compared with the western side. This is not a strong correlation because our data set of clusters is necessarily limited, but is suggestive and warrants further studyl. (2) Depending on how the reddening is computed to our clusters, we find a mean distance modulus that ranges from (m-M)o = 18.71 +/- 0.06 to 18.82 +/- 0.05. (3) The intrinsic +/- 1 sigma LOS depth of the SMC populous clusters in our study is between 6 and approximately 12 kpc, depending primarily on whether we adopt the Burstein & Heiles reddenings or those from Schlegel et al. (4) Viewing the SMC as a triaxial galaxy with declination, right ascension and LOS depth as the three axes, we find axial ratios of approximately 1:2:4. Taken together, these conclusions largely agree with those of previous investigator sand underscore the utility of populous star clusters as probes of the structure of the SMC.Fil: Crowl, Hugh H.. Wesleyan University; Estados UnidosFil: Sarajedini, Ata. Wesleyan University; Estados UnidosFil: 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: Geisler, Doug. Universidad de Concepción; ChileFil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; BrasilFil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; ArgentinaFil: Santos Jr., João F. C.. Universidade Federal do Minas Gerais; BrasilIOP Publishing2001-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22468Crowl, Hugh H.; Sarajedini, Ata; Piatti, Andres Eduardo; Geisler, Doug; Bica, Eduardo; et al.; The line-of-sight depth of popuous clusters in the Small Magellanic Cloud; IOP Publishing; Astronomical Journal; 122; 1; 7-2001; 220-2310004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/321128info:eu-repo/semantics/altIdentifier/doi/10.1086/321128info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0104227info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:58Zoai:ri.conicet.gov.ar:11336/22468instacron: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 09:45:59.143CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
title The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
spellingShingle The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
Crowl, Hugh H.
Small Magellanic Cloud
Star cluster
Photometry
title_short The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
title_full The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
title_fullStr The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
title_full_unstemmed The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
title_sort The line-of-sight depth of popuous clusters in the Small Magellanic Cloud
dc.creator.none.fl_str_mv Crowl, Hugh H.
Sarajedini, Ata
Piatti, Andres Eduardo
Geisler, Doug
Bica, Eduardo
Claria Olmedo, Juan Jose
Santos Jr., João F. C.
author Crowl, Hugh H.
author_facet Crowl, Hugh H.
Sarajedini, Ata
Piatti, Andres Eduardo
Geisler, Doug
Bica, Eduardo
Claria Olmedo, Juan Jose
Santos Jr., João F. C.
author_role author
author2 Sarajedini, Ata
Piatti, Andres Eduardo
Geisler, Doug
Bica, Eduardo
Claria Olmedo, Juan Jose
Santos Jr., João F. C.
author2_role author
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 We present an analysis of age, metal abundance and positional data on populous clusters in the Small Magellanic Cloud (SMC) with the ultimate aim of determining the line-of-sight (LOS) depth of the SMC by using these clusters as proxies. Our data set contains 12 objects and is limited to clusters with the highest-quality data for which the ages and abundances are best known and can be placed on an internally consistent scale. We have analyzed the variation of the clusters´ properties with position on the sky and with LOS depth. Based on this analysis, we draw the following conclusions: (1) The observational data indicate that the eastern side of the SMC (facing the large Magellanic Cloud) contains younger and more metal-rich clusters as compared with the western side. This is not a strong correlation because our data set of clusters is necessarily limited, but is suggestive and warrants further studyl. (2) Depending on how the reddening is computed to our clusters, we find a mean distance modulus that ranges from (m-M)o = 18.71 +/- 0.06 to 18.82 +/- 0.05. (3) The intrinsic +/- 1 sigma LOS depth of the SMC populous clusters in our study is between 6 and approximately 12 kpc, depending primarily on whether we adopt the Burstein & Heiles reddenings or those from Schlegel et al. (4) Viewing the SMC as a triaxial galaxy with declination, right ascension and LOS depth as the three axes, we find axial ratios of approximately 1:2:4. Taken together, these conclusions largely agree with those of previous investigator sand underscore the utility of populous star clusters as probes of the structure of the SMC.
Fil: Crowl, Hugh H.. Wesleyan University; Estados Unidos
Fil: Sarajedini, Ata. Wesleyan University; Estados Unidos
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: Geisler, Doug. Universidad de Concepción; Chile
Fil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Claria Olmedo, Juan Jose. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina
Fil: Santos Jr., João F. C.. Universidade Federal do Minas Gerais; Brasil
description We present an analysis of age, metal abundance and positional data on populous clusters in the Small Magellanic Cloud (SMC) with the ultimate aim of determining the line-of-sight (LOS) depth of the SMC by using these clusters as proxies. Our data set contains 12 objects and is limited to clusters with the highest-quality data for which the ages and abundances are best known and can be placed on an internally consistent scale. We have analyzed the variation of the clusters´ properties with position on the sky and with LOS depth. Based on this analysis, we draw the following conclusions: (1) The observational data indicate that the eastern side of the SMC (facing the large Magellanic Cloud) contains younger and more metal-rich clusters as compared with the western side. This is not a strong correlation because our data set of clusters is necessarily limited, but is suggestive and warrants further studyl. (2) Depending on how the reddening is computed to our clusters, we find a mean distance modulus that ranges from (m-M)o = 18.71 +/- 0.06 to 18.82 +/- 0.05. (3) The intrinsic +/- 1 sigma LOS depth of the SMC populous clusters in our study is between 6 and approximately 12 kpc, depending primarily on whether we adopt the Burstein & Heiles reddenings or those from Schlegel et al. (4) Viewing the SMC as a triaxial galaxy with declination, right ascension and LOS depth as the three axes, we find axial ratios of approximately 1:2:4. Taken together, these conclusions largely agree with those of previous investigator sand underscore the utility of populous star clusters as probes of the structure of the SMC.
publishDate 2001
dc.date.none.fl_str_mv 2001-07
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/11336/22468
Crowl, Hugh H.; Sarajedini, Ata; Piatti, Andres Eduardo; Geisler, Doug; Bica, Eduardo; et al.; The line-of-sight depth of popuous clusters in the Small Magellanic Cloud; IOP Publishing; Astronomical Journal; 122; 1; 7-2001; 220-231
0004-6256
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22468
identifier_str_mv Crowl, Hugh H.; Sarajedini, Ata; Piatti, Andres Eduardo; Geisler, Doug; Bica, Eduardo; et al.; The line-of-sight depth of popuous clusters in the Small Magellanic Cloud; IOP Publishing; Astronomical Journal; 122; 1; 7-2001; 220-231
0004-6256
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/321128
info:eu-repo/semantics/altIdentifier/doi/10.1086/321128
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0104227
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
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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