Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities

Detalhes bibliográficos
Autor(a) principal: Bica, Eduardo Luiz Damiani
Data de Publicação: 1996
Outros Autores: Jablonka, Pascale, Pelat, D., Alloin, Danielle Marie
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/98208
Resumo: We have carried out spectrophotometry in the range 3600–9700Å of five globular clusters in NGC 5128 for which previous photometric studies suggested a high metal content. We compare the equivalent widths of a set of metallic features of the NGC 5128 clusters with those of well-studied Galactic and M31 globular clusters. This enables us to derive a reliable ranking and estimate of the metallicity for the NGC 5128 clusters. The reddening is obtained from the comparison of the continuum distribution of the observed clusters with those of reference clusters. The present spectroscopic study clarifies the question raised in the photometric studies about the NGC 5128 clusters metallicities. We conclude that, in the present NGC 5128 sample, no object has actually a metallicity higher than solar, unlike what happens in M31.
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spelling Bica, Eduardo Luiz DamianiJablonka, PascalePelat, D.Alloin, Danielle Marie2014-07-19T02:07:10Z19960004-6361http://hdl.handle.net/10183/98208000037748We have carried out spectrophotometry in the range 3600–9700Å of five globular clusters in NGC 5128 for which previous photometric studies suggested a high metal content. We compare the equivalent widths of a set of metallic features of the NGC 5128 clusters with those of well-studied Galactic and M31 globular clusters. This enables us to derive a reliable ranking and estimate of the metallicity for the NGC 5128 clusters. The reddening is obtained from the comparison of the continuum distribution of the observed clusters with those of reference clusters. The present spectroscopic study clarifies the question raised in the photometric studies about the NGC 5128 clusters metallicities. We conclude that, in the present NGC 5128 sample, no object has actually a metallicity higher than solar, unlike what happens in M31.application/pdfengAstronomy and Astrophysics. Berlin. Vol. 307, no. 2 (Mar. 1996), p. 385-390Astrofisica extragalaticaAglomerados globularesGaláxia NGC 5128EspectrofotometriaFotometriaAbundanciaGalaxies: individual: NGC5128Starclusters: abundancesSpectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicitiesEstrangeiroinfo: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:UFRGSORIGINAL000037748.pdf000037748.pdfTexto completo (inglês)application/pdf284027http://www.lume.ufrgs.br/bitstream/10183/98208/1/000037748.pdf004a2b7c350694b2b9414909c6f08783MD51TEXT000037748.pdf.txt000037748.pdf.txtExtracted Texttext/plain4922http://www.lume.ufrgs.br/bitstream/10183/98208/2/000037748.pdf.txt52c1ae1a1980d628fddbce6d7256e9c0MD52THUMBNAIL000037748.pdf.jpg000037748.pdf.jpgGenerated Thumbnailimage/jpeg2119http://www.lume.ufrgs.br/bitstream/10183/98208/3/000037748.pdf.jpg0c698f4beb1dfcf05f99af85afb0e77cMD5310183/982082024-04-14 06:46:25.71478oai:www.lume.ufrgs.br:10183/98208Repositório InstitucionalPUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.bropendoar:2024-04-14T09:46:25Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
title Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
spellingShingle Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
Bica, Eduardo Luiz Damiani
Astrofisica extragalatica
Aglomerados globulares
Galáxia NGC 5128
Espectrofotometria
Fotometria
Abundancia
Galaxies: individual: NGC5128
Starclusters: abundances
title_short Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
title_full Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
title_fullStr Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
title_full_unstemmed Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
title_sort Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities
author Bica, Eduardo Luiz Damiani
author_facet Bica, Eduardo Luiz Damiani
Jablonka, Pascale
Pelat, D.
Alloin, Danielle Marie
author_role author
author2 Jablonka, Pascale
Pelat, D.
Alloin, Danielle Marie
author2_role author
author
author
dc.contributor.author.fl_str_mv Bica, Eduardo Luiz Damiani
Jablonka, Pascale
Pelat, D.
Alloin, Danielle Marie
dc.subject.por.fl_str_mv Astrofisica extragalatica
Aglomerados globulares
Galáxia NGC 5128
Espectrofotometria
Fotometria
Abundancia
topic Astrofisica extragalatica
Aglomerados globulares
Galáxia NGC 5128
Espectrofotometria
Fotometria
Abundancia
Galaxies: individual: NGC5128
Starclusters: abundances
dc.subject.eng.fl_str_mv Galaxies: individual: NGC5128
Starclusters: abundances
description We have carried out spectrophotometry in the range 3600–9700Å of five globular clusters in NGC 5128 for which previous photometric studies suggested a high metal content. We compare the equivalent widths of a set of metallic features of the NGC 5128 clusters with those of well-studied Galactic and M31 globular clusters. This enables us to derive a reliable ranking and estimate of the metallicity for the NGC 5128 clusters. The reddening is obtained from the comparison of the continuum distribution of the observed clusters with those of reference clusters. The present spectroscopic study clarifies the question raised in the photometric studies about the NGC 5128 clusters metallicities. We conclude that, in the present NGC 5128 sample, no object has actually a metallicity higher than solar, unlike what happens in M31.
publishDate 1996
dc.date.issued.fl_str_mv 1996
dc.date.accessioned.fl_str_mv 2014-07-19T02:07:10Z
dc.type.driver.fl_str_mv Estrangeiro
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/98208
dc.identifier.issn.pt_BR.fl_str_mv 0004-6361
dc.identifier.nrb.pt_BR.fl_str_mv 000037748
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url http://hdl.handle.net/10183/98208
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Astronomy and Astrophysics. Berlin. Vol. 307, no. 2 (Mar. 1996), p. 385-390
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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