Bh 176 and am-2 : globular or open clusters?

Detalhes bibliográficos
Autor(a) principal: Ortolani, Sergio
Data de Publicação: 1995
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/10183/98356
Resumo: We have obtained VI photometry for two low Galactic latitude star clusters: BH 176 and AM-2, using the 2.2 m and the 3.5 m NTT telescopes at ESO. Their VI colour-magnitude diagrams reveal that: BH 176 may be a globular cluster, or a borderline object between a globular cluster and a disk cluster, showing a red horizontal branch and an extended red giant branch. We estimate E(B – V) = 0.77 and dѳ = 13.4 kpc. AM-2 appears to be an intermediate age open cluster, for which a reddening E(B – V) = 0.44 and dѳ = 12.4 kpc are estimated. It is located in the outer regions of the Galactic disk.
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spelling Ortolani, SergioBica, Eduardo Luiz DamianiBarbuy, Beatriz2014-07-22T02:03:36Z19950004-6361http://hdl.handle.net/10183/98356000084713We have obtained VI photometry for two low Galactic latitude star clusters: BH 176 and AM-2, using the 2.2 m and the 3.5 m NTT telescopes at ESO. Their VI colour-magnitude diagrams reveal that: BH 176 may be a globular cluster, or a borderline object between a globular cluster and a disk cluster, showing a red horizontal branch and an extended red giant branch. We estimate E(B – V) = 0.77 and dѳ = 13.4 kpc. AM-2 appears to be an intermediate age open cluster, for which a reddening E(B – V) = 0.44 and dѳ = 12.4 kpc are estimated. It is located in the outer regions of the Galactic disk.application/pdfengAstronomy and Astrophysics. Berlin. Vol. 300, no. 3 (Aug. 1995), p. 726-731Astrofisica estelarEvolucao estelarAglomerados globularesFotometriaHR diagramglobular clusters. BH 176Open clusters: AM-2Bh 176 and am-2 : globular or open clusters?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:UFRGSORIGINAL000084713.pdf000084713.pdfTexto completo (inglês)application/pdf5775888http://www.lume.ufrgs.br/bitstream/10183/98356/1/000084713.pdfab70a1d5f8170c2ee873d0bea8b1fc5cMD51TEXT000084713.pdf.txt000084713.pdf.txtExtracted Texttext/plain15876http://www.lume.ufrgs.br/bitstream/10183/98356/2/000084713.pdf.txt4c03d8587fa0156e65c7303d006c19e6MD52THUMBNAIL000084713.pdf.jpg000084713.pdf.jpgGenerated Thumbnailimage/jpeg2102http://www.lume.ufrgs.br/bitstream/10183/98356/3/000084713.pdf.jpg24e55e64b388aa153c9a76e81a056b8fMD5310183/983562024-04-14 06:46:50.102645oai:www.lume.ufrgs.br:10183/98356Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-14T09:46:50Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Bh 176 and am-2 : globular or open clusters?
title Bh 176 and am-2 : globular or open clusters?
spellingShingle Bh 176 and am-2 : globular or open clusters?
Ortolani, Sergio
Astrofisica estelar
Evolucao estelar
Aglomerados globulares
Fotometria
HR diagram
globular clusters. BH 176
Open clusters: AM-2
title_short Bh 176 and am-2 : globular or open clusters?
title_full Bh 176 and am-2 : globular or open clusters?
title_fullStr Bh 176 and am-2 : globular or open clusters?
title_full_unstemmed Bh 176 and am-2 : globular or open clusters?
title_sort Bh 176 and am-2 : globular or open clusters?
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 estelar
Evolucao estelar
Aglomerados globulares
Fotometria
topic Astrofisica estelar
Evolucao estelar
Aglomerados globulares
Fotometria
HR diagram
globular clusters. BH 176
Open clusters: AM-2
dc.subject.eng.fl_str_mv HR diagram
globular clusters. BH 176
Open clusters: AM-2
description We have obtained VI photometry for two low Galactic latitude star clusters: BH 176 and AM-2, using the 2.2 m and the 3.5 m NTT telescopes at ESO. Their VI colour-magnitude diagrams reveal that: BH 176 may be a globular cluster, or a borderline object between a globular cluster and a disk cluster, showing a red horizontal branch and an extended red giant branch. We estimate E(B – V) = 0.77 and dѳ = 13.4 kpc. AM-2 appears to be an intermediate age open cluster, for which a reddening E(B – V) = 0.44 and dѳ = 12.4 kpc are estimated. It is located in the outer regions of the Galactic disk.
publishDate 1995
dc.date.issued.fl_str_mv 1995
dc.date.accessioned.fl_str_mv 2014-07-22T02:03:36Z
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dc.identifier.issn.pt_BR.fl_str_mv 0004-6361
dc.identifier.nrb.pt_BR.fl_str_mv 000084713
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Astronomy and Astrophysics. Berlin. Vol. 300, no. 3 (Aug. 1995), p. 726-731
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