Parámetros fundamentales de 4 cúmulos estelares débiles de la Nube Mayor de Magallanes determinados a partir de fotometría de Washington

PALMA, T.; CLARIÁ, J. J.; GEISLER, D.; BASSINO, L. P.; PIATTI, A. E.; AHUMADA, A. V.

San Juan

Congreso; 54 Reunion Anual de la Asoc. Arg. de Astronomia; 2011

As part of our uninterrupted systematic study of star clusters in the Large Magellanic Cloud (LMC), we present preliminary results for 4 faint, un- studied LMC star clusters. Based on CCD images in the Washington system obtained with the 4 m telescope at Cerro Tololo Inter-American Observa- tory (Chile), we derive approximate ages and metallicities using theoretical isochrones in the (T,C-T1 ) diagrams. The clusters are aged between 550 and 1300 Myr, being all of them relatively metal-poor. Their approximate radii were estimated from stellar density profiles. The current study will be soon extended into a vast LMC region wherein numerous unstudied star clusters can be found (Palma 2011).