Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?

Detalhes bibliográficos
Autor(a) principal: Ortolani, Sergio
Data de Publicação: 1996
Outros Autores: Bica, Eduardo Luiz Damiani, Barbuy, Beatriz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/98348
Resumo: We carried out V RI and Gunn z observations of the obscured globular cluster Liller 1. The cluster is so reddened (Av ≈ 9.0) that it is at the detection limit in V. The RGB in I vs. (I–z) shows a strong curvature. Recalling that the nearly solar metallicity globular clusters NGC 6553 and NGC 6528 present similar blanketing effects only in the visible bandpasses, we conclude that Liller 1 is considerably more metal-rich than these clusters. The CMD comparison of Liller 1 with the inner bulge field around it (located ≈ 5° from the nucleus), suggests that the cluster is as metallic as the most metallic fraction of this inner bulge population. Similarly deep I and z observations at ≈ 0.5° away from Liller 1, at the nominal position of Grindlay 1 do not reveal any cluster.
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spelling Ortolani, SergioBica, Eduardo Luiz DamianiBarbuy, Beatriz2014-07-22T02:03:30Z19960004-6361http://hdl.handle.net/10183/98348000037749We carried out V RI and Gunn z observations of the obscured globular cluster Liller 1. The cluster is so reddened (Av ≈ 9.0) that it is at the detection limit in V. The RGB in I vs. (I–z) shows a strong curvature. Recalling that the nearly solar metallicity globular clusters NGC 6553 and NGC 6528 present similar blanketing effects only in the visible bandpasses, we conclude that Liller 1 is considerably more metal-rich than these clusters. The CMD comparison of Liller 1 with the inner bulge field around it (located ≈ 5° from the nucleus), suggests that the cluster is as metallic as the most metallic fraction of this inner bulge population. Similarly deep I and z observations at ≈ 0.5° away from Liller 1, at the nominal position of Grindlay 1 do not reveal any cluster.application/pdfengAstronomy and Astrophysics. Berlin. Vol. 306, no. 1 (Feb. 1996), p. 134-140Astrofisica extragalaticaAglomerados globularesEvolucao estelarEstrelas : AbundanciaMetalicidade : Populacoes estelaresGalaxy: globular clusters: individual Liller 1Stars: HR diagramStars: abundancesNtt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?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:UFRGSORIGINAL000037749.pdf000037749.pdfTexto completo (inglês)application/pdf9911893http://www.lume.ufrgs.br/bitstream/10183/98348/1/000037749.pdfb43d293788b1fa2368c447fb3e6bdb83MD51TEXT000037749.pdf.txt000037749.pdf.txtExtracted Texttext/plain20393http://www.lume.ufrgs.br/bitstream/10183/98348/2/000037749.pdf.txtde7e6825c770e54298d4585856d3f9d8MD52THUMBNAIL000037749.pdf.jpg000037749.pdf.jpgGenerated Thumbnailimage/jpeg2094http://www.lume.ufrgs.br/bitstream/10183/98348/3/000037749.pdf.jpgf15f18c258521a2363cbc4d49835126bMD5310183/983482024-04-14 06:46:10.981357oai:www.lume.ufrgs.br:10183/98348Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-14T09:46:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
title Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
spellingShingle Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
Ortolani, Sergio
Astrofisica extragalatica
Aglomerados globulares
Evolucao estelar
Estrelas : Abundancia
Metalicidade : Populacoes estelares
Galaxy: globular clusters: individual Liller 1
Stars: HR diagram
Stars: abundances
title_short Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
title_full Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
title_fullStr Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
title_full_unstemmed Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
title_sort Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
author Ortolani, Sergio
author_facet Ortolani, Sergio
Bica, Eduardo Luiz Damiani
Barbuy, Beatriz
author_role author
author2 Bica, Eduardo Luiz Damiani
Barbuy, Beatriz
author2_role author
author
dc.contributor.author.fl_str_mv Ortolani, Sergio
Bica, Eduardo Luiz Damiani
Barbuy, Beatriz
dc.subject.por.fl_str_mv Astrofisica extragalatica
Aglomerados globulares
Evolucao estelar
Estrelas : Abundancia
Metalicidade : Populacoes estelares
topic Astrofisica extragalatica
Aglomerados globulares
Evolucao estelar
Estrelas : Abundancia
Metalicidade : Populacoes estelares
Galaxy: globular clusters: individual Liller 1
Stars: HR diagram
Stars: abundances
dc.subject.eng.fl_str_mv Galaxy: globular clusters: individual Liller 1
Stars: HR diagram
Stars: abundances
description We carried out V RI and Gunn z observations of the obscured globular cluster Liller 1. The cluster is so reddened (Av ≈ 9.0) that it is at the detection limit in V. The RGB in I vs. (I–z) shows a strong curvature. Recalling that the nearly solar metallicity globular clusters NGC 6553 and NGC 6528 present similar blanketing effects only in the visible bandpasses, we conclude that Liller 1 is considerably more metal-rich than these clusters. The CMD comparison of Liller 1 with the inner bulge field around it (located ≈ 5° from the nucleus), suggests that the cluster is as metallic as the most metallic fraction of this inner bulge population. Similarly deep I and z observations at ≈ 0.5° away from Liller 1, at the nominal position of Grindlay 1 do not reveal any cluster.
publishDate 1996
dc.date.issued.fl_str_mv 1996
dc.date.accessioned.fl_str_mv 2014-07-22T02:03:30Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/98348
dc.identifier.issn.pt_BR.fl_str_mv 0004-6361
dc.identifier.nrb.pt_BR.fl_str_mv 000037749
identifier_str_mv 0004-6361
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url http://hdl.handle.net/10183/98348
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Astronomy and Astrophysics. Berlin. Vol. 306, no. 1 (Feb. 1996), p. 134-140
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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instname:Universidade Federal do Rio Grande do Sul (UFRGS)
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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