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dc.contributor.author
Carraro, Giovanni
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dc.contributor.author
Baume, Gustavo Luis
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dc.date.available
2018-02-19T21:48:03Z
dc.date.issued
2003-11
dc.identifier.citation
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
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/36797
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Hertzsprung-Russell (Hr) Diagram
dc.subject
Open Clusters And Associations: General
dc.subject
Open Clusters And Associations: Individual: Saurer A
dc.subject
Open Clusters And Associations: Individual: Saurer B
dc.subject
Open Clusters And Associations: Individual: Saurer C
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
The old open clusters Saurer A, B and C revisited
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-02-19T16:54:20Z
dc.journal.volume
346
dc.journal.number
1
dc.journal.pagination
18-26
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Carraro, Giovanni. Università di Padova; Italia
dc.description.fil
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
dc.journal.title
Monthly Notices of the Royal Astronomical Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2966.2003.07062.x/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1046/j.1365-2966.2003.07062.x
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