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Integrated spectral properties of star clusters in the Magellanic Clouds

Published online by Cambridge University Press:  01 July 2008

Andrea V. Ahumada ,
M. L. Talavera ,
J. J. Clariá ,
J. F. C. Santos Jr. ,
E. Bica ,
M. C. Parisi  and
M. C. Torres
Andrea V. Ahumada
Affiliation:
European Southern Observatory - ESO, Chile, email: aahumada@eso.org Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina
M. L. Talavera
Affiliation:
Observatorio Astronómico Centroamericano de Suyapa, UNAH, Honduras
J. J. Clariá
Affiliation:
Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina
J. F. C. Santos Jr.
Affiliation:
Departamento de Física, ICEx, UFMG, Belo Horizonte, Brazil
E. Bica
Affiliation:
Departamento de Astronomia, UFRGS, Porto Alegre, Brazil
M. C. Parisi
Affiliation:
Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina
M. C. Torres
Affiliation:
Observatorio Astronómico, Universidad Nacional de Córdoba, Argentina
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Abstract

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We present flux-calibrated integrated spectra in the optical spectral range of concentrated star clusters in the Large and Small Magellanic Clouds (LMC-SMC), approximately half of which constitute unstudied objects. We have mainly estimated ages and foreground interstellar reddening values from the comparison of the line strengths and continuum distribution of the cluster spectra with those of template spectra with known parameters. Also reddening values were estimated by interpolation between the extinction maps of Burstein & Heiles (1982) (BH). A good agreement between ages and reddenings derived through the different procedures was found. The ages of the 27 LMC star clusters range from 5 to 125 Myr, while those of the 13 SMC vary from 4 to 350 Myr.

Keywords

techniques: spectroscopicMagellanic Cloudsgalaxies: star clusters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S256: The Magellanic System: Stars, Gas, and Galaxies , July 2008 , pp. 293 - 298
Copyright
Copyright © International Astronomical Union 2009

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