BS 196 : an old star cluster far from the Small Magellanic Cloud main body
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/90279 |
Resumo: | We present B and V photometry of the outlying Small Magellanic Cloud (SMC) star cluster BS 196 with the 4.1-m SOAR telescope. The photometry is deep (to V≈25), showing ≈ 3 mag below the cluster turnoff point at MV = 2.5 (1.03Mʘ). The cluster is located at the SMC distance. The colour–magnitude diagram and isochrone fittings provide a cluster age of 5.0 ± 0.5Gyr, indicating that this is one of the 12 oldest clusters so far detected in the SMC. The estimated metallicity is [Fe/H]=−1.68 ±0.10. The structural analysis gives by means of the King profile fittings a core radius Rc = 8.7 ± 1.1 arcsec (2.66 ± 0.14 pc) and a tidal radius Rt = 69.4 ± 1.7 arcsec (21.2 ± 1.2 pc). BS 196 is rather loose with a concentration parameter c = 0.90. With MV =−1.89 ± 0.39, BS 196 belongs to the class of intrinsically fainter SMC clusters, which have started to be explored as compared to the well-known populous ones. |
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Bica, Eduardo Luiz DamianiSantos Junior, Joao Francisco Coelho dosSchmidt, Alex Andre2014-04-03T01:51:29Z20080035-8711http://hdl.handle.net/10183/90279000679869We present B and V photometry of the outlying Small Magellanic Cloud (SMC) star cluster BS 196 with the 4.1-m SOAR telescope. The photometry is deep (to V≈25), showing ≈ 3 mag below the cluster turnoff point at MV = 2.5 (1.03Mʘ). The cluster is located at the SMC distance. The colour–magnitude diagram and isochrone fittings provide a cluster age of 5.0 ± 0.5Gyr, indicating that this is one of the 12 oldest clusters so far detected in the SMC. The estimated metallicity is [Fe/H]=−1.68 ±0.10. The structural analysis gives by means of the King profile fittings a core radius Rc = 8.7 ± 1.1 arcsec (2.66 ± 0.14 pc) and a tidal radius Rt = 69.4 ± 1.7 arcsec (21.2 ± 1.2 pc). BS 196 is rather loose with a concentration parameter c = 0.90. With MV =−1.89 ± 0.39, BS 196 belongs to the class of intrinsically fainter SMC clusters, which have started to be explored as compared to the well-known populous ones.application/pdfengMonthly notices of the royal astronomical society. Oxford. Vol. 391, no. 2 (Dec. 2008), p. 915-921Aglomerados estelaresGaláxiasPequena Nuvem de MagalhãesFotometriaMagellanic cloudsGalaxies: star clustersBS 196 : an old star cluster far from the Small Magellanic Cloud main bodyEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000679869.pdf000679869.pdfTexto completo (inglês)application/pdf1596819http://www.lume.ufrgs.br/bitstream/10183/90279/1/000679869.pdf3e7a46aa18a7041687cba9b93479e298MD51TEXT000679869.pdf.txt000679869.pdf.txtExtracted Texttext/plain30881http://www.lume.ufrgs.br/bitstream/10183/90279/2/000679869.pdf.txtce64edcf31c9fef9726c1394163083f0MD52THUMBNAIL000679869.pdf.jpg000679869.pdf.jpgGenerated Thumbnailimage/jpeg2161http://www.lume.ufrgs.br/bitstream/10183/90279/3/000679869.pdf.jpg697ec7a610194ae3b2a3b2f4997afadfMD5310183/902792023-10-25 03:39:28.822801oai:www.lume.ufrgs.br:10183/90279Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-10-25T06:39:28Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
title |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
spellingShingle |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body Bica, Eduardo Luiz Damiani Aglomerados estelares Galáxias Pequena Nuvem de Magalhães Fotometria Magellanic clouds Galaxies: star clusters |
title_short |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
title_full |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
title_fullStr |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
title_full_unstemmed |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
title_sort |
BS 196 : an old star cluster far from the Small Magellanic Cloud main body |
author |
Bica, Eduardo Luiz Damiani |
author_facet |
Bica, Eduardo Luiz Damiani Santos Junior, Joao Francisco Coelho dos Schmidt, Alex Andre |
author_role |
author |
author2 |
Santos Junior, Joao Francisco Coelho dos Schmidt, Alex Andre |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Bica, Eduardo Luiz Damiani Santos Junior, Joao Francisco Coelho dos Schmidt, Alex Andre |
dc.subject.por.fl_str_mv |
Aglomerados estelares Galáxias Pequena Nuvem de Magalhães Fotometria |
topic |
Aglomerados estelares Galáxias Pequena Nuvem de Magalhães Fotometria Magellanic clouds Galaxies: star clusters |
dc.subject.eng.fl_str_mv |
Magellanic clouds Galaxies: star clusters |
description |
We present B and V photometry of the outlying Small Magellanic Cloud (SMC) star cluster BS 196 with the 4.1-m SOAR telescope. The photometry is deep (to V≈25), showing ≈ 3 mag below the cluster turnoff point at MV = 2.5 (1.03Mʘ). The cluster is located at the SMC distance. The colour–magnitude diagram and isochrone fittings provide a cluster age of 5.0 ± 0.5Gyr, indicating that this is one of the 12 oldest clusters so far detected in the SMC. The estimated metallicity is [Fe/H]=−1.68 ±0.10. The structural analysis gives by means of the King profile fittings a core radius Rc = 8.7 ± 1.1 arcsec (2.66 ± 0.14 pc) and a tidal radius Rt = 69.4 ± 1.7 arcsec (21.2 ± 1.2 pc). BS 196 is rather loose with a concentration parameter c = 0.90. With MV =−1.89 ± 0.39, BS 196 belongs to the class of intrinsically fainter SMC clusters, which have started to be explored as compared to the well-known populous ones. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2014-04-03T01:51:29Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
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publishedVersion |
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http://hdl.handle.net/10183/90279 |
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0035-8711 |
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000679869 |
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http://hdl.handle.net/10183/90279 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Monthly notices of the royal astronomical society. Oxford. Vol. 391, no. 2 (Dec. 2008), p. 915-921 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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