| Issue |
A&A
Volume 667, November 2022
|
|
|---|---|---|
| Article Number | A69 | |
| Number of page(s) | 9 | |
| Section | Galactic structure, stellar clusters and populations | |
| DOI | https://doi.org/10.1051/0004-6361/202243579 | |
| Published online | 07 November 2022 | |
Environmental effects on the dynamical evolution of star clusters in turbulent molecular clouds
1
Dipartimento di Fisica, Università di Pisa, largo B. Pontecorvo 3, Pisa 56127, Italy
e-mail: p.suin@studenti.unipi.it
2
INFN, Sezione di Pisa, largo B. Pontecorvo 3, Pisa, 56127, Italy
3
Indiana University, Department of Astronomy, Swain Hall West, 727 E 3rd Street, Bloomington, IN 47405, USA
Received:
18
March
2022
Accepted:
1
July
2022
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).
Results. 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.
Key words: galaxies: star clusters: general / galaxies: kinematics and dynamics / globular clusters: general / methods: numerical
© P. Suin et al. 2022
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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