Metal-rich globular clusters : giant branch morphology as a metallicity Criterion
Autor(a) principal: | |
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Data de Publicação: | 1991 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/98212 |
Resumo: | We have obtained VI CCD photometry of the very metal-rich inner bulge globular clusters NGC 6528, NGC 6553 and Ter 1, and of 47 Tuc and NGC 6356, which are usually called metal-rich clusters. We discuss the RGB morphology in the V vs. (V-I) and I vs. (V-I) diagrams for ranking the metallicities of these clusters. We used the arc-like structure present in their RGB, due to blanketing in the cooler giants, as a metallicity criterion, which is corroborated by line strengths in integrated spectra. We propose criteria of morphological parameters based on RGB inclination for increasing metallicities. We conclude that Terzan 1 is the most metal-rich globular cluster of this sample. |
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Ortolani, SergioBarbuy, BeatrizBica, Eduardo Luiz Damiani2014-07-19T02:07:12Z19910004-6361http://hdl.handle.net/10183/98212000055473We have obtained VI CCD photometry of the very metal-rich inner bulge globular clusters NGC 6528, NGC 6553 and Ter 1, and of 47 Tuc and NGC 6356, which are usually called metal-rich clusters. We discuss the RGB morphology in the V vs. (V-I) and I vs. (V-I) diagrams for ranking the metallicities of these clusters. We used the arc-like structure present in their RGB, due to blanketing in the cooler giants, as a metallicity criterion, which is corroborated by line strengths in integrated spectra. We propose criteria of morphological parameters based on RGB inclination for increasing metallicities. We conclude that Terzan 1 is the most metal-rich globular cluster of this sample.application/pdfengAstronomy and Astrophysics. Berlin. Vol. 249, no. 2 (Sept. 1991), p. L31-L33AstrofísicaAglomerados globularesGaláxia NGC 6356Galáxia NGC 6528Galáxia NGC 6553Bojos de galaxiasMetalicidadeClusters: globularGalaxy: bulgeMetal-rich globular clusters : giant branch morphology as a metallicity CriterionEstrangeiroinfo: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:UFRGSORIGINAL000055473.pdf000055473.pdfTexto completo (inglês)application/pdf314812http://www.lume.ufrgs.br/bitstream/10183/98212/1/000055473.pdfe4395d1cd2313bf75e59f82bef260f36MD51TEXT000055473.pdf.txt000055473.pdf.txtExtracted Texttext/plain9975http://www.lume.ufrgs.br/bitstream/10183/98212/2/000055473.pdf.txt4bdcdf5db61ecef155e8a5a438175f68MD52THUMBNAIL000055473.pdf.jpg000055473.pdf.jpgGenerated Thumbnailimage/jpeg2132http://www.lume.ufrgs.br/bitstream/10183/98212/3/000055473.pdf.jpg6df655186dacb521c4f552036040ae2dMD5310183/982122024-04-14 06:46:52.086486oai:www.lume.ufrgs.br:10183/98212Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-14T09:46:52Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
title |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
spellingShingle |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion Ortolani, Sergio Astrofísica Aglomerados globulares Galáxia NGC 6356 Galáxia NGC 6528 Galáxia NGC 6553 Bojos de galaxias Metalicidade Clusters: globular Galaxy: bulge |
title_short |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
title_full |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
title_fullStr |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
title_full_unstemmed |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
title_sort |
Metal-rich globular clusters : giant branch morphology as a metallicity Criterion |
author |
Ortolani, Sergio |
author_facet |
Ortolani, Sergio Barbuy, Beatriz Bica, Eduardo Luiz Damiani |
author_role |
author |
author2 |
Barbuy, Beatriz Bica, Eduardo Luiz Damiani |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ortolani, Sergio Barbuy, Beatriz Bica, Eduardo Luiz Damiani |
dc.subject.por.fl_str_mv |
Astrofísica Aglomerados globulares Galáxia NGC 6356 Galáxia NGC 6528 Galáxia NGC 6553 Bojos de galaxias Metalicidade |
topic |
Astrofísica Aglomerados globulares Galáxia NGC 6356 Galáxia NGC 6528 Galáxia NGC 6553 Bojos de galaxias Metalicidade Clusters: globular Galaxy: bulge |
dc.subject.eng.fl_str_mv |
Clusters: globular Galaxy: bulge |
description |
We have obtained VI CCD photometry of the very metal-rich inner bulge globular clusters NGC 6528, NGC 6553 and Ter 1, and of 47 Tuc and NGC 6356, which are usually called metal-rich clusters. We discuss the RGB morphology in the V vs. (V-I) and I vs. (V-I) diagrams for ranking the metallicities of these clusters. We used the arc-like structure present in their RGB, due to blanketing in the cooler giants, as a metallicity criterion, which is corroborated by line strengths in integrated spectra. We propose criteria of morphological parameters based on RGB inclination for increasing metallicities. We conclude that Terzan 1 is the most metal-rich globular cluster of this sample. |
publishDate |
1991 |
dc.date.issued.fl_str_mv |
1991 |
dc.date.accessioned.fl_str_mv |
2014-07-19T02:07:12Z |
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 |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/98212 |
dc.identifier.issn.pt_BR.fl_str_mv |
0004-6361 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000055473 |
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0004-6361 000055473 |
url |
http://hdl.handle.net/10183/98212 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and Astrophysics. Berlin. Vol. 249, no. 2 (Sept. 1991), p. L31-L33 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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