Blanketing effects in the very metal-rich bulge globular cluster terzan 1
Autor(a) principal: | |
---|---|
Data de Publicação: | 1993 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/98353 |
Resumo: | We present BVRI and Gunn z CCD photometry for the bulge metal-rich globular cluster Terzan 1. The RGB shows an anomalous shape and the HB is extremely red. lt is projected on a very metal-rich bulge population. We demonstrate that this cluster is strongly affected by blanketing in the B and V bands. From the I vs. (V – I) photometry, we obtained a reddening E(B – V) ≈ 1.67, in agreement with previous JHK photometry estimate. We conclude that this cluster has a very high metallicity, as revealed by an anomalous RGB morphology, in particular in the V vs. (B – V) diagram, and an excess blanketing of ∆ (V – I) ~ 0.8 – 0.9 relative to the Baade window population. These results should be considered in the modelisation of metal-rich atmospheres and analyses of metal-rich composite spectra and photometric indices. |
id |
UFRGS-2_e9e3f9d77a79939a826e1e4572c621a2 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/98353 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Ortolani, SergioBica, Eduardo Luiz DamianiBarbuy, Beatriz2014-07-22T02:03:35Z19930004-6361http://hdl.handle.net/10183/98353000056664We present BVRI and Gunn z CCD photometry for the bulge metal-rich globular cluster Terzan 1. The RGB shows an anomalous shape and the HB is extremely red. lt is projected on a very metal-rich bulge population. We demonstrate that this cluster is strongly affected by blanketing in the B and V bands. From the I vs. (V – I) photometry, we obtained a reddening E(B – V) ≈ 1.67, in agreement with previous JHK photometry estimate. We conclude that this cluster has a very high metallicity, as revealed by an anomalous RGB morphology, in particular in the V vs. (B – V) diagram, and an excess blanketing of ∆ (V – I) ~ 0.8 – 0.9 relative to the Baade window population. These results should be considered in the modelisation of metal-rich atmospheres and analyses of metal-rich composite spectra and photometric indices.application/pdfengAstronomy and Astrophysics. Berlin. Vol. 267, no. 1 (Jan. 1993), p. 66-74Astrofisica extragalaticaAglomerado globular Terzan 1MetalicidadeFotometriaBulge globular clustersBVRI CCD imagesColour-magnitude diagramsBlanketing effects in the very metal-rich bulge globular cluster terzan 1Estrangeiroinfo: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:UFRGSORIGINAL000056664.pdf000056664.pdfTexto completo (inglês)application/pdf3884659http://www.lume.ufrgs.br/bitstream/10183/98353/1/000056664.pdf8f485dd7b8736fd4b57cb0a5c730bf6cMD51TEXT000056664.pdf.txt000056664.pdf.txtExtracted Texttext/plain33252http://www.lume.ufrgs.br/bitstream/10183/98353/2/000056664.pdf.txtaac9e1b21a08f2c70f7ace33cb24096cMD52THUMBNAIL000056664.pdf.jpg000056664.pdf.jpgGenerated Thumbnailimage/jpeg2131http://www.lume.ufrgs.br/bitstream/10183/98353/3/000056664.pdf.jpg1b76c29994f87d9d6d27f71224e1ef5cMD5310183/983532024-04-14 06:45:50.757465oai:www.lume.ufrgs.br:10183/98353Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-14T09:45:50Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
title |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
spellingShingle |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 Ortolani, Sergio Astrofisica extragalatica Aglomerado globular Terzan 1 Metalicidade Fotometria Bulge globular clusters BVRI CCD images Colour-magnitude diagrams |
title_short |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
title_full |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
title_fullStr |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
title_full_unstemmed |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
title_sort |
Blanketing effects in the very metal-rich bulge globular cluster terzan 1 |
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 Aglomerado globular Terzan 1 Metalicidade Fotometria |
topic |
Astrofisica extragalatica Aglomerado globular Terzan 1 Metalicidade Fotometria Bulge globular clusters BVRI CCD images Colour-magnitude diagrams |
dc.subject.eng.fl_str_mv |
Bulge globular clusters BVRI CCD images Colour-magnitude diagrams |
description |
We present BVRI and Gunn z CCD photometry for the bulge metal-rich globular cluster Terzan 1. The RGB shows an anomalous shape and the HB is extremely red. lt is projected on a very metal-rich bulge population. We demonstrate that this cluster is strongly affected by blanketing in the B and V bands. From the I vs. (V – I) photometry, we obtained a reddening E(B – V) ≈ 1.67, in agreement with previous JHK photometry estimate. We conclude that this cluster has a very high metallicity, as revealed by an anomalous RGB morphology, in particular in the V vs. (B – V) diagram, and an excess blanketing of ∆ (V – I) ~ 0.8 – 0.9 relative to the Baade window population. These results should be considered in the modelisation of metal-rich atmospheres and analyses of metal-rich composite spectra and photometric indices. |
publishDate |
1993 |
dc.date.issued.fl_str_mv |
1993 |
dc.date.accessioned.fl_str_mv |
2014-07-22T02:03:35Z |
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/10183/98353 |
dc.identifier.issn.pt_BR.fl_str_mv |
0004-6361 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000056664 |
identifier_str_mv |
0004-6361 000056664 |
url |
http://hdl.handle.net/10183/98353 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and Astrophysics. Berlin. Vol. 267, no. 1 (Jan. 1993), p. 66-74 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
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 |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/98353/1/000056664.pdf http://www.lume.ufrgs.br/bitstream/10183/98353/2/000056664.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/98353/3/000056664.pdf.jpg |
bitstream.checksum.fl_str_mv |
8f485dd7b8736fd4b57cb0a5c730bf6c aac9e1b21a08f2c70f7ace33cb24096c 1b76c29994f87d9d6d27f71224e1ef5c |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224840674279424 |