Environmental Effects on the Dynamical Evolution of Star Clusters in Turbulent Molecular Clouds
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 -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.
Keywords
Cite
@article{arxiv.2207.01634,
title = {Environmental Effects on the Dynamical Evolution of Star Clusters in Turbulent Molecular Clouds},
author = {Paolo Suin and Steven N. Shore and Václav Pavlík},
journal= {arXiv preprint arXiv:2207.01634},
year = {2022}
}
Comments
9 pages, 2 appendices, 4 tables, 6 figures, accepted for publication to A&A