A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics

Detalhes bibliográficos
Autor(a) principal: Ortolani, Sergio
Data de Publicação: 2011
Outros Autores: Barbuy, Beatriz, Momany, Yazan, Saviane, Ivo, Bica, Eduardo Luiz Damiani, Jilkova, Lucie, Salerno, Gustavo Malta, Jungwiert, Bruno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/108975
Resumo: The globular cluster HP 1 is projected on the bulge, very close to the Galactic center. The Multi-Conjugate Adaptive Optics Demonstrator on the Very Large Telescope allowed us to acquire high-resolution deep images that, combined with first epoch New Technology Telescope data, enabled us to derive accurate proper motions. The cluster and bulge fields’ stellar contents were disentangled through this process and produced an unprecedented definition in color–magnitude diagrams of this cluster. The metallicity of [Fe/H] ≈ −1.0 from previous spectroscopic analysis is confirmed, which together with an extended blue horizontal branch imply an age older than the halo average. Orbit reconstruction results suggest that HP 1 is spatially confined within the bulge.
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spelling Ortolani, SergioBarbuy, BeatrizMomany, YazanSaviane, IvoBica, Eduardo Luiz DamianiJilkova, LucieSalerno, Gustavo MaltaJungwiert, Bruno2015-01-15T02:15:11Z20110004-637Xhttp://hdl.handle.net/10183/108975000821125The globular cluster HP 1 is projected on the bulge, very close to the Galactic center. The Multi-Conjugate Adaptive Optics Demonstrator on the Very Large Telescope allowed us to acquire high-resolution deep images that, combined with first epoch New Technology Telescope data, enabled us to derive accurate proper motions. The cluster and bulge fields’ stellar contents were disentangled through this process and produced an unprecedented definition in color–magnitude diagrams of this cluster. The metallicity of [Fe/H] ≈ −1.0 from previous spectroscopic analysis is confirmed, which together with an extended blue horizontal branch imply an age older than the halo average. Orbit reconstruction results suggest that HP 1 is spatially confined within the bulge.application/pdfengThe astrophysical journal. Bristol. Vol. 737, no. 1 (Aug. 2011), 31, 9 p.Aglomerados estelares globularesEspectros astronômicosÓptica adaptivaCentro galaticoComposicao estelarMovimento estelarGalaxy: bulgeGlobular clusters: generalGlobular clusters: individual (HP 1)A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive opticsEstrangeiroinfo: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:UFRGSORIGINAL000821125.pdf000821125.pdfTexto completo (inglês)application/pdf2023397http://www.lume.ufrgs.br/bitstream/10183/108975/1/000821125.pdfa38e6322df7aabcc7b5847dc02440aecMD51TEXT000821125.pdf.txt000821125.pdf.txtExtracted Texttext/plain46181http://www.lume.ufrgs.br/bitstream/10183/108975/2/000821125.pdf.txtd6c80005b883e3467b6fce15cb06c96dMD52THUMBNAIL000821125.pdf.jpg000821125.pdf.jpgGenerated Thumbnailimage/jpeg2134http://www.lume.ufrgs.br/bitstream/10183/108975/3/000821125.pdf.jpg084000bd57878b0c818dda6d1b7f066eMD5310183/1089752023-10-25 03:39:03.693154oai:www.lume.ufrgs.br:10183/108975Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-10-25T06:39:03Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
title A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
spellingShingle A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
Ortolani, Sergio
Aglomerados estelares globulares
Espectros astronômicos
Óptica adaptiva
Centro galatico
Composicao estelar
Movimento estelar
Galaxy: bulge
Globular clusters: general
Globular clusters: individual (HP 1)
title_short A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
title_full A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
title_fullStr A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
title_full_unstemmed A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
title_sort A fossil bulge globular cluster revealed by very large telescope multi-conjugate adaptive optics
author Ortolani, Sergio
author_facet Ortolani, Sergio
Barbuy, Beatriz
Momany, Yazan
Saviane, Ivo
Bica, Eduardo Luiz Damiani
Jilkova, Lucie
Salerno, Gustavo Malta
Jungwiert, Bruno
author_role author
author2 Barbuy, Beatriz
Momany, Yazan
Saviane, Ivo
Bica, Eduardo Luiz Damiani
Jilkova, Lucie
Salerno, Gustavo Malta
Jungwiert, Bruno
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Ortolani, Sergio
Barbuy, Beatriz
Momany, Yazan
Saviane, Ivo
Bica, Eduardo Luiz Damiani
Jilkova, Lucie
Salerno, Gustavo Malta
Jungwiert, Bruno
dc.subject.por.fl_str_mv Aglomerados estelares globulares
Espectros astronômicos
Óptica adaptiva
Centro galatico
Composicao estelar
Movimento estelar
topic Aglomerados estelares globulares
Espectros astronômicos
Óptica adaptiva
Centro galatico
Composicao estelar
Movimento estelar
Galaxy: bulge
Globular clusters: general
Globular clusters: individual (HP 1)
dc.subject.eng.fl_str_mv Galaxy: bulge
Globular clusters: general
Globular clusters: individual (HP 1)
description The globular cluster HP 1 is projected on the bulge, very close to the Galactic center. The Multi-Conjugate Adaptive Optics Demonstrator on the Very Large Telescope allowed us to acquire high-resolution deep images that, combined with first epoch New Technology Telescope data, enabled us to derive accurate proper motions. The cluster and bulge fields’ stellar contents were disentangled through this process and produced an unprecedented definition in color–magnitude diagrams of this cluster. The metallicity of [Fe/H] ≈ −1.0 from previous spectroscopic analysis is confirmed, which together with an extended blue horizontal branch imply an age older than the halo average. Orbit reconstruction results suggest that HP 1 is spatially confined within the bulge.
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2015-01-15T02:15:11Z
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/10183/108975
dc.identifier.issn.pt_BR.fl_str_mv 0004-637X
dc.identifier.nrb.pt_BR.fl_str_mv 000821125
identifier_str_mv 0004-637X
000821125
url http://hdl.handle.net/10183/108975
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv The astrophysical journal. Bristol. Vol. 737, no. 1 (Aug. 2011), 31, 9 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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