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dc.contributor.author
Asa'd, Randa S.
dc.contributor.author
Hanson, M. M.
dc.contributor.author
Ahumada, Andrea Veronica
dc.date.available
2017-09-13T15:30:19Z
dc.date.issued
2013-11
dc.identifier.citation
Asa'd, Randa S.; Hanson, M. M.; Ahumada, Andrea Veronica; An Investigation of the Use of Synthetic Spectra to Find the Ages of Stellar Clusters
; IOP Publishing; Publications of the Astronomical Society of the Pacific; 125; 933; 11-2013; 1304-1314
dc.identifier.issn
0004-6280
dc.identifier.uri
http://hdl.handle.net/11336/24143
dc.description.abstract
The utility of stellar cluster aging methods based on integrated spectra is clearly demonstrated by its extensive use by researchers for decades. However, few studies have determined the accuracy of such methods using a significant sample of age-calibrated stellar clusters with recent models. We have amassed a sample of 27 stellar clusters, 20 with new spectra we obtained with the SOAR and Blanco 4-m Telescopes, with previously determined ages using color-magnitude diagrams (CMDs). We compared the CMD ages to ages obtained from the clusters’ integrated spectra. We find that the integrated spectra in the wavelength range 3626–6230 Å, when compared with high resolution computational models, provide very good age predictions. In particular, the spectral method is more robust in resolving the age-extinction degeneracy that plagues broad-band photometric aging methods. We observe no significant difference in the ability of the synthetic spectra to fit and properly age stellar clusters based on the intrinsic mass of the stellar clusters in our sample.
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
Stellar Clusters
dc.subject
Magellanic Clouds
dc.subject.classification
Otras Ciencias Físicas
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
An Investigation of the Use of Synthetic Spectra to Find the Ages of Stellar Clusters
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-13T14:15:24Z
dc.journal.volume
125
dc.journal.number
933
dc.journal.pagination
1304-1314
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Asa'd, Randa S.. American University of Sharjah; Emiratos Arabes Unidos. University Of Cincinnati; Estados Unidos
dc.description.fil
Fil: Hanson, M. M.. University Of Cincinnati; Estados Unidos
dc.description.fil
Fil: Ahumada, Andrea Veronica. Universidad Nacional de Cordoba. Observatorio Astronomico de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Publications of the Astronomical Society of the Pacific
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1086/674079
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/674079
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