Astrophysical properties of star clusters in the Magellanic Clouds homogeneously estimated by ASteCA

 

Autores
Perren, Gabriel Ignacio; Piatti, Andres Eduardo; Vazquez, Ruben Angel
Tipo de recurso
artículo
Estado
Versión publicada
Año de publicación
2017
País
Argentina
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio
CONICET Digital (CONICET)
Descripción
Aims. To produce an homogeneous catalog of astrophysical parameters of 239 resolved star clusters located in the Small and Large Magellanic Clouds, observed in the Washington photometric system. Methods. The cluster sample was processed with the recently introduced Automated Stellar Cluster Analysis (ASteCA) package, which ensures both an automatized and a fully reproducible treatment, together with a statistically based analysis of their fundamental parameters and associated uncertainties. The fundamental parameters determined with this tool for each cluster, via a color-magnitude diagram (CMD) analysis, are: metallicity, age, reddening, distance modulus, and total mass. Results. We generated an homogeneous catalog of structural and fundamental parameters for the studied cluster sample, and performed a detailed internal error analysis along with a thorough comparison with values taken from twenty-six published articles. We studied the distribution of cluster fundamental parameters in both Clouds, and obtained their age-metallicity relationships. Conclusions. The ASteCA package can be applied to an unsupervised determination of fundamental cluster parameters; a task of increasing relevance as more data becomes available through upcoming surveys.
Idioma
inglés
OAI Identifier
oai:ri.conicet.gov.ar:11336/42495
Enlace del recurso
http://hdl.handle.net/11336/42495
Nivel de acceso
Acceso abierto
Materia
Fundamental parameters
Galaxies
Statistical methods
Star clusters
Magellanic Clouds
Asteca
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS