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dc.contributor.author
Piatti, Andres Eduardo
dc.date.available
2017-07-04T20:20:41Z
dc.date.issued
2012-08-22
dc.identifier.citation
Piatti, Andres Eduardo; Identification of a new relatively old star cluster in the Small Magellanic Cloud; IOP Publishing; The Astrophysical Journal Letters; 756; 2; 22-8-2012; 1-5; L32
dc.identifier.issn
2041-8205
dc.identifier.uri
http://hdl.handle.net/11336/19531
dc.description.abstract
We present results on the age and metallicity estimates of the astonishingly unstudied Small Magellanic Cloud (SMC) cluster ESO 51-SC09, from CCD BVI photometry obtained at the ESO NTT with the EMMI attached. ESO 51-SC09 turns out to be a relatively small cluster (FWHM = 10 ± 1 pc) located ∼4◦ northward from the galaxy center. We report for the first time a mean cluster age of 7.0 ± 1.3 Gyr and a mean cluster metallicity of [Fe/H] = −1.00 ± 0.15 dex, concluding that ESO 51-SC09 belongs to the group of the oldest SMC clusters. We found that the cluster is projected onto a dominant field stellar population older (age ∼10–13 Gyr) and more metal-poor ([Fe/H] = −1.3 ± 0.2 dex), so that the cluster could reach its current location because of its orbital motion.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cluster
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Identification of a new relatively old star cluster in the Small Magellanic Cloud
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-04T14:09:01Z
dc.journal.volume
756
dc.journal.number
2
dc.journal.pagination
1-5; L32
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Piatti, Andres Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.journal.title
The Astrophysical Journal Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/2041-8205/756/2/L32
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/756/2/L32/meta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1207.7301


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