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dc.contributor.author
Piatti, Andres Eduardo
dc.date.available
2018-01-29T21:51:50Z
dc.date.issued
2014-10
dc.identifier.citation
Piatti, Andres Eduardo; Bruck 88: a young star cluster with an old age resemblance in the outskirts of the Small Magellanic Cloud; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 445; 3; 10-2014; 2302-2312
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/34973
dc.description.abstract
We present spectroscopic and photometric results for the Small Magellanic Cloud (SMC) cluster Bruck 88. From the comparison of the cluster integrated spectrum with template cluster spectra, we found that the Milky Way globular cluster template spectra are the ones which best resemble it. However, the extracted cluster colour–magnitude diagram reveals that Bruck 88 is a young cluster (log(t) = 8.1 ± 0.1). The derived cluster age is compatible with the presence of a bright red giant (BRG) star located ∼2.6 arcsec in the sky from the cluster centre. We serendipitously observed HW 33, a star cluster located ≈3 arcmin to the south-east from Bruck 88. We obtained for the cluster the same age than Bruck 88 and surprisingly, a BRG star located within the cluster radius also appears to be compatible with the cluster age. We estimated the MK type of the BRG star in the Bruck 88 field to be in the range G9 II/Ib–K1 III. By combining the spectrum of a star within this MK type range with a 100–150 Myr template cluster integrated spectrum, we found that a proportion 85/15 in the sense BRG/template results in a spectrum which best resembles that of Bruck 88. This result confirms that a BRG star dominates the cluster integrated spectrum, so that it causes the globular cluster appearance of its integrated light.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Techniques: Photometric
dc.subject
Techniques: Spectroscopic
dc.subject
Galaxies: Individual
dc.subject
Smc
dc.subject
Magellanic Clouds
dc.subject
Galaxies: Star Clusters: General
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Bruck 88: a young star cluster with an old age resemblance in the outskirts of 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
2018-01-29T19:44:28Z
dc.journal.volume
445
dc.journal.number
3
dc.journal.pagination
2302-2312
dc.journal.pais
Reino Unido
dc.journal.ciudad
Oxford
dc.description.fil
Fil: Piatti, Andres Eduardo. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Monthly Notices of the Royal Astronomical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stu1917
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/445/3/2302/1046886
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1409.3772
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