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Artículo

Determination of reddening and age for ten large Magellanic Cloud star clusters from integrated spectroscopy

Ahumada, Andrea VeronicaIcon ; Vega, Luis Rodolfo; Clariá, Juan JoséIcon ; Oddone, Mónica Alejandra; Palma, TaliIcon
Fecha de publicación: 09/2016
Editorial: IOP Publishing
Revista: Publications of the Astronomical Society of the Pacific
ISSN: 0004-6280
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Naturales y Exactas

Resumen

We present flux-calibrated integrated spectra in the optical range (3700–6800 Å) obtained at Complejo Astronómico El Leoncito (CASLEO, Argentina) for a sample of 10 concentrated star clusters belonging to the Large Magellanic Cloud (LMC). No previous data exist for two of these objects (SL 142 and SL 624), while most of the remaining clusters have been only poorly studied. We derive simultaneously foreground E(B − V) reddening values and ages for the cluster sample by comparing their integrated spectra with template LMC cluster spectra and with two different sets of simple stellar population models. Cluster reddening values and ages are also derived from both available interstellar extinction maps and by using diagnostic diagrams involving the sum of equivalent widths of some selected spectral features and their calibrations with age, respectively. For the studied sample, we derive ages between 1 Myr and 240 Myr. In an effort to create a spectral library at the LMC metallicity level with several clusters per age range, the cluster sample presented here stands out as a useful complement to previous ones.
Palabras clave: GENERAL , MAGELLANIC CLOUDS – GALAXIES , SPECTROSCOPIC – (GALAXIES) , STAR CLUSTERS , TECHNIQUES
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/179871
URL: https://iopscience.iop.org/article/10.1088/1538-3873/128/967/094101
DOI: http://dx.doi.org/10.1088/1538-3873/128/967/094101
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IATE)
Articulos de INST.DE ASTRONOMIA TEORICA Y EXPERIMENTAL
Citación
Ahumada, Andrea Veronica; Vega, Luis Rodolfo; Clariá, Juan José; Oddone, Mónica Alejandra; Palma, Tali; Determination of reddening and age for ten large Magellanic Cloud star clusters from integrated spectroscopy; IOP Publishing; Publications of the Astronomical Society of the Pacific; 128; 967; 9-2016; 4101-4114
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