B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/108029 |
Resumo: | Colour-Magnitude Diagrams are presented for the globular clusters NGC 6325 and NGC 6355. These clusters are embedded in crowded bulge fields. Both clusters are concentrated and have blue Horizontal Branches, and NGC 6325 shows a blue tail. We derive a reddening E(B−V) 0:95 and a distance from the Sun d 6:9 kpc for NGC 6325, and E(B−V) 0:78 and d 8:8 kpc for NGC 6355. They are both at 1 kpc from the Galactic center, above the plane. The metallicity has been estimated based on red giant branch morphology, being consistent with an intermediate metallicity of [Fe=H] −1:3 for both clusters, at the lower end of the metallicity distribution of bulge field stars. They add to the list of blue Horizontal Branch clusters with intermediate metallicities within the bulge volume. |
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Ortolani, SergioBica, Eduardo Luiz DamianiBarbuy, Beatriz2014-12-11T02:15:42Z20030004-6361http://hdl.handle.net/10183/108029000383590Colour-Magnitude Diagrams are presented for the globular clusters NGC 6325 and NGC 6355. These clusters are embedded in crowded bulge fields. Both clusters are concentrated and have blue Horizontal Branches, and NGC 6325 shows a blue tail. We derive a reddening E(B−V) 0:95 and a distance from the Sun d 6:9 kpc for NGC 6325, and E(B−V) 0:78 and d 8:8 kpc for NGC 6355. They are both at 1 kpc from the Galactic center, above the plane. The metallicity has been estimated based on red giant branch morphology, being consistent with an intermediate metallicity of [Fe=H] −1:3 for both clusters, at the lower end of the metallicity distribution of bulge field stars. They add to the list of blue Horizontal Branch clusters with intermediate metallicities within the bulge volume.application/pdfengAstronomy and astrophysics. Berlin. Vol. 402, no. 2 (May 2003), p. 565-569Astronomiagalaxy: clusters: individual: NGC 6325, NGC 6355Stars: Hertzsprung-Russell (HR) and C-M diagramsB, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355Estrangeiroinfo: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:UFRGSORIGINAL000383590.pdf000383590.pdfTexto completo (inglês)application/pdf1025320http://www.lume.ufrgs.br/bitstream/10183/108029/1/000383590.pdfb60dcc38eb646c58214c26d774cd5d99MD51TEXT000383590.pdf.txt000383590.pdf.txtExtracted Texttext/plain20877http://www.lume.ufrgs.br/bitstream/10183/108029/2/000383590.pdf.txtd17d58dfdde9f327afda052f0dcbc18eMD52THUMBNAIL000383590.pdf.jpg000383590.pdf.jpgGenerated Thumbnailimage/jpeg1995http://www.lume.ufrgs.br/bitstream/10183/108029/3/000383590.pdf.jpg51ad5a17b1b1e543cf5e8cff2d594645MD5310183/1080292024-04-12 06:21:05.196867oai:www.lume.ufrgs.br:10183/108029Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-12T09:21:05Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
title |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
spellingShingle |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 Ortolani, Sergio Astronomia galaxy: clusters: individual: NGC 6325, NGC 6355 Stars: Hertzsprung-Russell (HR) and C-M diagrams |
title_short |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
title_full |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
title_fullStr |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
title_full_unstemmed |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
title_sort |
B, V and I photometry of the intermediate metallicity bulge globular clusters NGC 6325 and NGC 6355 |
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 |
Astronomia |
topic |
Astronomia galaxy: clusters: individual: NGC 6325, NGC 6355 Stars: Hertzsprung-Russell (HR) and C-M diagrams |
dc.subject.eng.fl_str_mv |
galaxy: clusters: individual: NGC 6325, NGC 6355 Stars: Hertzsprung-Russell (HR) and C-M diagrams |
description |
Colour-Magnitude Diagrams are presented for the globular clusters NGC 6325 and NGC 6355. These clusters are embedded in crowded bulge fields. Both clusters are concentrated and have blue Horizontal Branches, and NGC 6325 shows a blue tail. We derive a reddening E(B−V) 0:95 and a distance from the Sun d 6:9 kpc for NGC 6325, and E(B−V) 0:78 and d 8:8 kpc for NGC 6355. They are both at 1 kpc from the Galactic center, above the plane. The metallicity has been estimated based on red giant branch morphology, being consistent with an intermediate metallicity of [Fe=H] −1:3 for both clusters, at the lower end of the metallicity distribution of bulge field stars. They add to the list of blue Horizontal Branch clusters with intermediate metallicities within the bulge volume. |
publishDate |
2003 |
dc.date.issued.fl_str_mv |
2003 |
dc.date.accessioned.fl_str_mv |
2014-12-11T02:15:42Z |
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 |
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publishedVersion |
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http://hdl.handle.net/10183/108029 |
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0004-6361 |
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000383590 |
identifier_str_mv |
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url |
http://hdl.handle.net/10183/108029 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and astrophysics. Berlin. Vol. 402, no. 2 (May 2003), p. 565-569 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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