Metallicity of the star III-17 in the bulge globular cluster NGC 6553

Detalhes bibliográficos
Autor(a) principal: Barbuy, Beatriz
Data de Publicação: 1992
Outros Autores: Castro, S., Ortolani, Sergio, Bica, Eduardo Luiz Damiani
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/98381
Resumo: CCD échelle spectra were obtained at the 3.6 m telescope at ESO for the star III-17 of the metal-rich globular cluster NGC 6553. This cluster was chosen because it is a relatively dose bulge globular cluster and also it presented the possibility to be among the most metal-rich ones in the Galaxy. The metallicity of the star III-17 is derived by fitting synthetic spectra to the spectrum observed in the wavelength region λλ475–580 nm. We derived an overall metallicity of [M/H] = –0.2⁺⁰’²₋₀‚₄ , therefore approximately solar, whereas there may be an evidence for a CNO overabundance. Further observations of individual stars in NGC 6553 are necessary in order to definitely establish its metallicity.
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spelling Barbuy, BeatrizCastro, S.Ortolani, SergioBica, Eduardo Luiz Damiani2014-07-23T02:04:34Z19920004-6361http://hdl.handle.net/10183/98381000056278CCD échelle spectra were obtained at the 3.6 m telescope at ESO for the star III-17 of the metal-rich globular cluster NGC 6553. This cluster was chosen because it is a relatively dose bulge globular cluster and also it presented the possibility to be among the most metal-rich ones in the Galaxy. The metallicity of the star III-17 is derived by fitting synthetic spectra to the spectrum observed in the wavelength region λλ475–580 nm. We derived an overall metallicity of [M/H] = –0.2⁺⁰’²₋₀‚₄ , therefore approximately solar, whereas there may be an evidence for a CNO overabundance. Further observations of individual stars in NGC 6553 are necessary in order to definitely establish its metallicity.application/pdfengAstronomy and Astrophysics. Berlin. Vol. 259, no. 2 (June 1992), p. 607-613Astrofisica extragalaticaMetalicidadeBojos de galaxiasAglomerados globularesGaláxiasBulge globular clustersSynthetic spectraMetallicity of metal-rich globular clustersMetallicity of the star III-17 in the bulge globular cluster NGC 6553Estrangeiroinfo: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:UFRGSORIGINAL000056278.pdf000056278.pdfTexto completo (inglês)application/pdf642815http://www.lume.ufrgs.br/bitstream/10183/98381/1/000056278.pdf846e2179f9a75800dbc5f492b4a43f24MD51TEXT000056278.pdf.txt000056278.pdf.txtExtracted Texttext/plain21944http://www.lume.ufrgs.br/bitstream/10183/98381/2/000056278.pdf.txt6577d473725ee853c9883c7f08f1a41dMD52THUMBNAIL000056278.pdf.jpg000056278.pdf.jpgGenerated Thumbnailimage/jpeg2149http://www.lume.ufrgs.br/bitstream/10183/98381/3/000056278.pdf.jpg4912a2895bbf1395500d0d69cbdc8d4eMD5310183/983812024-04-14 06:45:49.74893oai:www.lume.ufrgs.br:10183/98381Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-14T09:45:49Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Metallicity of the star III-17 in the bulge globular cluster NGC 6553
title Metallicity of the star III-17 in the bulge globular cluster NGC 6553
spellingShingle Metallicity of the star III-17 in the bulge globular cluster NGC 6553
Barbuy, Beatriz
Astrofisica extragalatica
Metalicidade
Bojos de galaxias
Aglomerados globulares
Galáxias
Bulge globular clusters
Synthetic spectra
Metallicity of metal-rich globular clusters
title_short Metallicity of the star III-17 in the bulge globular cluster NGC 6553
title_full Metallicity of the star III-17 in the bulge globular cluster NGC 6553
title_fullStr Metallicity of the star III-17 in the bulge globular cluster NGC 6553
title_full_unstemmed Metallicity of the star III-17 in the bulge globular cluster NGC 6553
title_sort Metallicity of the star III-17 in the bulge globular cluster NGC 6553
author Barbuy, Beatriz
author_facet Barbuy, Beatriz
Castro, S.
Ortolani, Sergio
Bica, Eduardo Luiz Damiani
author_role author
author2 Castro, S.
Ortolani, Sergio
Bica, Eduardo Luiz Damiani
author2_role author
author
author
dc.contributor.author.fl_str_mv Barbuy, Beatriz
Castro, S.
Ortolani, Sergio
Bica, Eduardo Luiz Damiani
dc.subject.por.fl_str_mv Astrofisica extragalatica
Metalicidade
Bojos de galaxias
Aglomerados globulares
Galáxias
topic Astrofisica extragalatica
Metalicidade
Bojos de galaxias
Aglomerados globulares
Galáxias
Bulge globular clusters
Synthetic spectra
Metallicity of metal-rich globular clusters
dc.subject.eng.fl_str_mv Bulge globular clusters
Synthetic spectra
Metallicity of metal-rich globular clusters
description CCD échelle spectra were obtained at the 3.6 m telescope at ESO for the star III-17 of the metal-rich globular cluster NGC 6553. This cluster was chosen because it is a relatively dose bulge globular cluster and also it presented the possibility to be among the most metal-rich ones in the Galaxy. The metallicity of the star III-17 is derived by fitting synthetic spectra to the spectrum observed in the wavelength region λλ475–580 nm. We derived an overall metallicity of [M/H] = –0.2⁺⁰’²₋₀‚₄ , therefore approximately solar, whereas there may be an evidence for a CNO overabundance. Further observations of individual stars in NGC 6553 are necessary in order to definitely establish its metallicity.
publishDate 1992
dc.date.issued.fl_str_mv 1992
dc.date.accessioned.fl_str_mv 2014-07-23T02:04:34Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/98381
dc.identifier.issn.pt_BR.fl_str_mv 0004-6361
dc.identifier.nrb.pt_BR.fl_str_mv 000056278
identifier_str_mv 0004-6361
000056278
url http://hdl.handle.net/10183/98381
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Astronomy and Astrophysics. Berlin. Vol. 259, no. 2 (June 1992), p. 607-613
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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reponame_str Repositório Institucional da UFRGS
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