{ "id": "2207.01634", "version": "v1", "published": "2022-07-04T18:00:03.000Z", "updated": "2022-07-04T18:00:03.000Z", "title": "Environmental Effects on the Dynamical Evolution of Star Clusters in Turbulent Molecular Clouds", "authors": [ "Paolo Suin", "Steven N. Shore", "Václav Pavlík" ], "comment": "9 pages, 2 appendices, 4 tables, 6 figures, accepted for publication to A&A", "categories": [ "astro-ph.GA" ], "abstract": "Context: Star clusters form within giant molecular clouds that are strongly altered by the feedback action of the massive stars, but the cluster still remains embedded in a dense, highly turbulent medium and interactions with ambient structures may modify its dynamical evolution from that expected if it were isolated. Aims: We aim to study coupling mechanisms between the dynamical evolution of the cluster, accelerated by the mass segregation process, with harassment effects caused by the gaseous environment. Methods: We simulated the cluster dynamical evolution combining $N$-body and hydrodynamic codes within the Astronomical Multipurpose Software Environment (AMUSE). Conclusions: Tidal harassment produces a sparser configuration more rapidly than the isolated reference simulations. The evolution of the asymptotic power-law density distribution exponent also shows substantially different behaviour in the two cases. The background is more effective on clusters in advanced stages of dynamical development.", "revisions": [ { "version": "v1", "updated": "2022-07-04T18:00:03.000Z" } ], "analyses": { "keywords": [ "dynamical evolution", "turbulent molecular clouds", "star clusters", "environmental effects", "asymptotic power-law density distribution exponent" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }