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dc.contributor.author
Claria Olmedo, Juan Jose
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dc.contributor.author
Ahumada, Andrea Veronica
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dc.contributor.author
Bica, Eduardo
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dc.contributor.author
Pavani, D. B.
dc.contributor.author
Parisi, Maria Celeste
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dc.date.available
2019-03-26T14:56:06Z
dc.date.issued
2017-10
dc.identifier.citation
Claria Olmedo, Juan Jose; Ahumada, Andrea Veronica; Bica, Eduardo; Pavani, D. B.; Parisi, Maria Celeste; Integrated spectral study of small angular diameter galactic open clusters; Elsevier Science; New Astronomy; 56; 10-2017; 71-83
dc.identifier.issn
1384-1076
dc.identifier.uri
http://hdl.handle.net/11336/72519
dc.description.abstract
This paper presents flux-calibrated integrated spectra obtained at Complejo Astronómico El Leoncito (CASLEO, Argentina) for a sample of 9 Galactic open clusters of small angular diameter. The spectra cover the optical range (3800–6800 Å), with a resolution of ∼14 Å. With one exception (Ruprecht 158), the selected clusters are projected into the fourth Galactic quadrant (282 o l 345 o ) near the Galactic plane (∣b∣ ≤ 9 o ). We performed simultaneous estimates of foreground interstellar reddening and age by comparing the continuum distribution and line strenghts of the cluster spectra with those of template cluster spectra with known parameters. We thus provide spectroscopic information independent from that derived through color-magnitude diagram studies. We found three clusters (Collinder 249, NGC 4463 and Ruprecht 122) younger than ∼40 Myr, four moderately young ones (BH 92, Harvard 5, Hogg 14 and Pismis 23) with ages within 200–400 Myr, and two intermediate-age ones (Ruprecht 158 and ESO 065-SC07) with ages within 1.0–2.2 Gyr. The derived foreground E(B−V) color excesses vary from around 0.0 in Ruprecht 158 to ∼1.1 in Pismis 23. In general terms, the results obtained show good agreement with previous photometric results. In Ruprecht 158 and BH 92, however, some differences are found between the parameters here obtained and previous values in the literature. Individual spectra of some comparatively bright stars located in the fields of 5 out of the 9 clusters here studied, allowed us to evaluate their membership status. The current cluster sample complements that of 46 open clusters previously studied by our group in an effort to gather a spectral library with several clusters per age bin. The cluster spectral library that we have been building is an important tool to tie studies of resolved and unresolved stellar content.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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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
Bh 92
dc.subject
Collinder 249
dc.subject
Eso 065-C07
dc.subject
Galaxy: Open Clusters And Associations: Individual: Ruprecht 158
dc.subject
Harvard 5
dc.subject
Hogg 14
dc.subject
Ngc 4463
dc.subject
Pismis 23
dc.subject
Ruprecht 122 - Techniques: Spectroscopic
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
Integrated spectral study of small angular diameter galactic open 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
2019-03-18T19:28:58Z
dc.journal.volume
56
dc.journal.pagination
71-83
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Claria Olmedo, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
dc.description.fil
Fil: Ahumada, Andrea Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina
dc.description.fil
Fil: Bica, Eduardo. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Pavani, D. B.. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Parisi, Maria Celeste. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.journal.title
New Astronomy
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1384107616301324
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.newast.2017.04.011
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