Estudio fotométrico de sistemas binarios y múltiples de cúmulos estelares de la Nube Mayor de Magallanes

T. PALMA, J.J. CLARIA, D. GEISLER, A.V. AHUMADA

Tandil

Congreso; 56 Reunión Anual de la Asociación Argentina de Astronomía; 2013

We study 11 probable binary or multiple systems of star clusters (SCs) of the Large Magellanic Cloud. They are formed by 31 SCs, out of which 19 have been observed in the Washington system with the Cerro Tololo ?Victor Blanco? 4 m telescope. We confirm a high probability of physical reality for some of the studied binary or multiple system candidates. We also determine their probable formation epochs and show that some of them could not be genuine physical systems. In all cases we recommend to confirm the physical association of these SC systems byexamining their heliocentric distances and relative radial velocities.