Stirring up a embedded star cluster with a moving gas filament
Abstract
We perform simulations to test the effects of a moving gas filament on a young star cluster (i. e. the ``Slingshot'' Model). We model Orion Nebula Cluster-like clusters as Plummer spheres and the Integral Shaped Filament gas as a cylindrical potential. We observe that in a static filament, an initially spherical cluster evolves naturally into an elongated distribution of stars. For sinusoidal moving filaments, we observe different remnants, and classify them into 4 categories. "Healthy" clusters, where almost all the stars stay inside the filament and the cluster; "destroyed" clusters are the opposite case, with almost no particles in the filament or near the centre of density of the clusters; "ejected" clusters, where a large fraction of stars are close to the centre of density of the stars , but almost none of them in the filament; and "transition" clusters, where roughly the same number of particles are ejected from the cluster and from the filament. A cluster similar to an Orion Nebula Cluster might stay inside the filament or be ejected, but it will not be destroyed.
- Publication:
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Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- August 2019
- DOI:
- 10.48550/arXiv.1909.04540
- arXiv:
- arXiv:1909.04540
- Bibcode:
- 2019BAAA...61..148M
- Keywords:
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- methods: numerical;
- Galaxy: open clusters and associations: individual: ONC;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - Instrumentation and Methods for Astrophysics
- E-Print:
- Accepted by BAAA. 3 pages, 2 figures