Análisis evolutivo del cúmulo abierto NGC2527

LOVOS, F.; GONZÁLEZ, J.F.; VERAMENDI, M. E.

Tandil

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

Instituto de Astronomía y Física del Espacio

We present a spectroscopic analysis of 13 (V < 11) stars inthe open cluster NGC2527. We carried out a study of radial velocity variabilityand kinematic membership. We detected three double-lined spectroscopicbinaries, two of which are cluster members. One of the binariesis a blue straggler, for which we discuss possible formation scenarios. Weconclude that this system would have been formed dynamically througha binary-binary or binary-single encounter, being the blue straggler theresult of the merger of the companions of the original binary.