The Gaia-ESO survey and the evolution of stellar clusters. Published on A&A “The Gaia-ESO Survey: kinematical and dynamical study of four young open clusters” of L. Bravi (INAF-OA Arcetri)
Despite the stars in our Galaxy typically formed in stellar clusters, only a small fraction of them today is observed associated with a cluster. This led to the conclusion that stellar clusters typically disperse in 10-100 million years. Two mechanisms are thought to be responsible for the dispersion of stellar clusters. According to the model of the “residual gas expulsion”,
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