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Is IC2391 evaporating?

Claudio H. F. Melo
European Southern Observatory

Observational data show that a large fraction of the open clusters will not survive over 100Myr. This phenomenon is known as "infant mortality". During the SACY survey, we found that the young nearby association Argus presents similarities with the young open cluster IC2391, forming a halo of stars around a more compact concentration of the bona-fide cluster members. Are we witnessing an on-going disruption of an open cluster in our backdoor? In my talk I will discuss this possibility and the evidences in favor of it.

2012 September 27, 13:30

Centro de AstrofÝsica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Instituto de Astrof├şsica e Ci├¬ncias do Espa├žo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Funda├ž├úo para a Ci├¬ncia e a Tecnologia
Outreach at IA