The old open clusters Saurer A, B and C revisited

Autores
Carraro, Giovanni; Baume, Gustavo Luis
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report deep (V ≈ 24.0) VI CCD photometry of three fields centred in the regions of the old open clusters Saurer A, B and C. In the case of Saurer A, which is considered one of the oldest known open clusters, we also provide a comparison field. From the analysis of the photometry we claim that Saurer A is as old as M67 (≈5 Gyr), but more metal-poor (Z = 0.008). Moreover, it turns out to be the open cluster with the largest galactocentric distance so far detected. As for Saurer B, it closely resembles NGC 2158, and indeed is of intermediate age (1.8-2.2 Gyr) and significantly reddened. In this case we revise both the age and the distance with respect to previous studies, but we are not able to establish clearly the cluster metal abundance. Finally, Saurer C has an age of about 2 Gyr, but we emphasize that the precise determination of its properties is hampered by the heavy field star contamination. All of the photometry is available at the WEBDA data base: http://obswww.unige.ch/webda/navigation.html.
Fil: Carraro, Giovanni. Università di Padova; Italia
Fil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Materia
Hertzsprung-Russell (Hr) Diagram
Open Clusters And Associations: General
Open Clusters And Associations: Individual: Saurer A
Open Clusters And Associations: Individual: Saurer B
Open Clusters And Associations: Individual: Saurer C
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/36797
Acceder
id CONICETDig_35bd2382209abba6fc63e1631b39aa12
oai_identifier_str oai:ri.conicet.gov.ar:11336/36797
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The old open clusters Saurer A, B and C revisitedCarraro, GiovanniBaume, Gustavo LuisHertzsprung-Russell (Hr) DiagramOpen Clusters And Associations: GeneralOpen Clusters And Associations: Individual: Saurer AOpen Clusters And Associations: Individual: Saurer BOpen Clusters And Associations: Individual: Saurer Chttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report deep (V ≈ 24.0) VI CCD photometry of three fields centred in the regions of the old open clusters Saurer A, B and C. In the case of Saurer A, which is considered one of the oldest known open clusters, we also provide a comparison field. From the analysis of the photometry we claim that Saurer A is as old as M67 (≈5 Gyr), but more metal-poor (Z = 0.008). Moreover, it turns out to be the open cluster with the largest galactocentric distance so far detected. As for Saurer B, it closely resembles NGC 2158, and indeed is of intermediate age (1.8-2.2 Gyr) and significantly reddened. In this case we revise both the age and the distance with respect to previous studies, but we are not able to establish clearly the cluster metal abundance. Finally, Saurer C has an age of about 2 Gyr, but we emphasize that the precise determination of its properties is hampered by the heavy field star contamination. All of the photometry is available at the WEBDA data base: http://obswww.unige.ch/webda/navigation.html.Fil: Carraro, Giovanni. Università di Padova; ItaliaFil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaWiley Blackwell Publishing, Inc2003-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/36797Carraro, Giovanni; Baume, Gustavo Luis; The old open clusters Saurer A, B and C revisited; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 346; 1; 11-2003; 18-260035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2966.2003.07062.x/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-2966.2003.07062.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:02:30Zoai:ri.conicet.gov.ar:11336/36797instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:02:30.386CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The old open clusters Saurer A, B and C revisited
title The old open clusters Saurer A, B and C revisited
spellingShingle The old open clusters Saurer A, B and C revisited
Carraro, Giovanni
Hertzsprung-Russell (Hr) Diagram
Open Clusters And Associations: General
Open Clusters And Associations: Individual: Saurer A
Open Clusters And Associations: Individual: Saurer B
Open Clusters And Associations: Individual: Saurer C
title_short The old open clusters Saurer A, B and C revisited
title_full The old open clusters Saurer A, B and C revisited
title_fullStr The old open clusters Saurer A, B and C revisited
title_full_unstemmed The old open clusters Saurer A, B and C revisited
title_sort The old open clusters Saurer A, B and C revisited
dc.creator.none.fl_str_mv Carraro, Giovanni
Baume, Gustavo Luis
author Carraro, Giovanni
author_facet Carraro, Giovanni
Baume, Gustavo Luis
author_role author
author2 Baume, Gustavo Luis
author2_role author
dc.subject.none.fl_str_mv Hertzsprung-Russell (Hr) Diagram
Open Clusters And Associations: General
Open Clusters And Associations: Individual: Saurer A
Open Clusters And Associations: Individual: Saurer B
Open Clusters And Associations: Individual: Saurer C
topic Hertzsprung-Russell (Hr) Diagram
Open Clusters And Associations: General
Open Clusters And Associations: Individual: Saurer A
Open Clusters And Associations: Individual: Saurer B
Open Clusters And Associations: Individual: Saurer C
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report deep (V ≈ 24.0) VI CCD photometry of three fields centred in the regions of the old open clusters Saurer A, B and C. In the case of Saurer A, which is considered one of the oldest known open clusters, we also provide a comparison field. From the analysis of the photometry we claim that Saurer A is as old as M67 (≈5 Gyr), but more metal-poor (Z = 0.008). Moreover, it turns out to be the open cluster with the largest galactocentric distance so far detected. As for Saurer B, it closely resembles NGC 2158, and indeed is of intermediate age (1.8-2.2 Gyr) and significantly reddened. In this case we revise both the age and the distance with respect to previous studies, but we are not able to establish clearly the cluster metal abundance. Finally, Saurer C has an age of about 2 Gyr, but we emphasize that the precise determination of its properties is hampered by the heavy field star contamination. All of the photometry is available at the WEBDA data base: http://obswww.unige.ch/webda/navigation.html.
Fil: Carraro, Giovanni. Università di Padova; Italia
Fil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
description We report deep (V ≈ 24.0) VI CCD photometry of three fields centred in the regions of the old open clusters Saurer A, B and C. In the case of Saurer A, which is considered one of the oldest known open clusters, we also provide a comparison field. From the analysis of the photometry we claim that Saurer A is as old as M67 (≈5 Gyr), but more metal-poor (Z = 0.008). Moreover, it turns out to be the open cluster with the largest galactocentric distance so far detected. As for Saurer B, it closely resembles NGC 2158, and indeed is of intermediate age (1.8-2.2 Gyr) and significantly reddened. In this case we revise both the age and the distance with respect to previous studies, but we are not able to establish clearly the cluster metal abundance. Finally, Saurer C has an age of about 2 Gyr, but we emphasize that the precise determination of its properties is hampered by the heavy field star contamination. All of the photometry is available at the WEBDA data base: http://obswww.unige.ch/webda/navigation.html.
publishDate 2003
dc.date.none.fl_str_mv 2003-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/36797
Carraro, Giovanni; Baume, Gustavo Luis; The old open clusters Saurer A, B and C revisited; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 346; 1; 11-2003; 18-26
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/36797
identifier_str_mv Carraro, Giovanni; Baume, Gustavo Luis; The old open clusters Saurer A, B and C revisited; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 346; 1; 11-2003; 18-26
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2966.2003.07062.x/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-2966.2003.07062.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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