Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers?
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/10183/108030 |
Resumo: | Context. The LMC and SMC are rich in binary star clusters, and some mergers are expected. It is thus important to characterise single clusters, binary clusters and candidates for mergers. Aims. We selected a sample of star clusters in each Cloud with this aim. Surface photometry of 25 SMC and 22 LMC star clusters was carried with the ESO Danish 1.54 m telescope. 23 clusters were observed for the first time for these purposes. Methods. We fitted Elson, Fall and Freeman (EFF) profiles to the data, deriving structural parameters, luminosities and masses. We also use isophotal maps to constrain candidates for cluster interactions. Results. The structural parameters, luminosities and masses presented good agreement with those in the literature. Three binary clusters in the sample have a double profile. Four clusters (NGC376, K50, K54 and NGC1810) do not have companions and present important deviations from EFF profiles. Conclusions. The present sample contains blue and red Magellanic clusters. Profiles with excess with respect to EFF were detected in some blue clusters. We find evidence that important deviations from the body of EFF profiles might be used as a tool to detect cluster mergers. |
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Carvalho, Luziane OliveiraSaurin, Tiago AbreuBica, Eduardo Luiz DamianiBonatto, Charles JoseSchmidt, Alex Andre2014-12-11T02:15:43Z20080004-6361http://hdl.handle.net/10183/108030000674258Context. The LMC and SMC are rich in binary star clusters, and some mergers are expected. It is thus important to characterise single clusters, binary clusters and candidates for mergers. Aims. We selected a sample of star clusters in each Cloud with this aim. Surface photometry of 25 SMC and 22 LMC star clusters was carried with the ESO Danish 1.54 m telescope. 23 clusters were observed for the first time for these purposes. Methods. We fitted Elson, Fall and Freeman (EFF) profiles to the data, deriving structural parameters, luminosities and masses. We also use isophotal maps to constrain candidates for cluster interactions. Results. The structural parameters, luminosities and masses presented good agreement with those in the literature. Three binary clusters in the sample have a double profile. Four clusters (NGC376, K50, K54 and NGC1810) do not have companions and present important deviations from EFF profiles. Conclusions. The present sample contains blue and red Magellanic clusters. Profiles with excess with respect to EFF were detected in some blue clusters. We find evidence that important deviations from the body of EFF profiles might be used as a tool to detect cluster mergers.application/pdfengAstronomy and astrophysics. Les Ulis. Vol. 485, no. 1 (Jul. 2008), p. 71-80Aglomerados estelaresNuvens de magalhaesGaláxiasBrilhoGalaxies: Magellanic CloudsGalaxies: star clustersStructures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers?Estrangeiroinfo: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:UFRGSORIGINAL000674258.pdf000674258.pdfTexto completo (inglês)application/pdf1546484http://www.lume.ufrgs.br/bitstream/10183/108030/1/000674258.pdf4809901193cb6dd7b9a1e9b11e697da5MD51TEXT000674258.pdf.txt000674258.pdf.txtExtracted Texttext/plain47408http://www.lume.ufrgs.br/bitstream/10183/108030/2/000674258.pdf.txt93725281865cde7b6d7829b7a669f68aMD52THUMBNAIL000674258.pdf.jpg000674258.pdf.jpgGenerated Thumbnailimage/jpeg1927http://www.lume.ufrgs.br/bitstream/10183/108030/3/000674258.pdf.jpg2fac886e45489f74dbf10531b2e619dbMD5310183/1080302023-07-15 03:27:38.593099oai:www.lume.ufrgs.br:10183/108030Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-15T06:27:38Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
title |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
spellingShingle |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? Carvalho, Luziane Oliveira Aglomerados estelares Nuvens de magalhaes Galáxias Brilho Galaxies: Magellanic Clouds Galaxies: star clusters |
title_short |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
title_full |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
title_fullStr |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
title_full_unstemmed |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
title_sort |
Structures in surface-brightness profiles of LMC and SMC star clusters : evidence of mergers? |
author |
Carvalho, Luziane Oliveira |
author_facet |
Carvalho, Luziane Oliveira Saurin, Tiago Abreu Bica, Eduardo Luiz Damiani Bonatto, Charles Jose Schmidt, Alex Andre |
author_role |
author |
author2 |
Saurin, Tiago Abreu Bica, Eduardo Luiz Damiani Bonatto, Charles Jose Schmidt, Alex Andre |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Luziane Oliveira Saurin, Tiago Abreu Bica, Eduardo Luiz Damiani Bonatto, Charles Jose Schmidt, Alex Andre |
dc.subject.por.fl_str_mv |
Aglomerados estelares Nuvens de magalhaes Galáxias Brilho |
topic |
Aglomerados estelares Nuvens de magalhaes Galáxias Brilho Galaxies: Magellanic Clouds Galaxies: star clusters |
dc.subject.eng.fl_str_mv |
Galaxies: Magellanic Clouds Galaxies: star clusters |
description |
Context. The LMC and SMC are rich in binary star clusters, and some mergers are expected. It is thus important to characterise single clusters, binary clusters and candidates for mergers. Aims. We selected a sample of star clusters in each Cloud with this aim. Surface photometry of 25 SMC and 22 LMC star clusters was carried with the ESO Danish 1.54 m telescope. 23 clusters were observed for the first time for these purposes. Methods. We fitted Elson, Fall and Freeman (EFF) profiles to the data, deriving structural parameters, luminosities and masses. We also use isophotal maps to constrain candidates for cluster interactions. Results. The structural parameters, luminosities and masses presented good agreement with those in the literature. Three binary clusters in the sample have a double profile. Four clusters (NGC376, K50, K54 and NGC1810) do not have companions and present important deviations from EFF profiles. Conclusions. The present sample contains blue and red Magellanic clusters. Profiles with excess with respect to EFF were detected in some blue clusters. We find evidence that important deviations from the body of EFF profiles might be used as a tool to detect cluster mergers. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2014-12-11T02:15:43Z |
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000674258 |
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dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and astrophysics. Les Ulis. Vol. 485, no. 1 (Jul. 2008), p. 71-80 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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