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Simulating star formation in spiral galaxies

Published online by Cambridge University Press:  20 January 2023

Steven Rieder
Affiliation:
Geneva Observatory, University of Geneva, Sauverny, Switzerland email: steven@stevenrieder.nl School of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
Clare Dobbs
Affiliation:
School of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
Thomas Bending
Affiliation:
School of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
Kong You Liow
Affiliation:
School of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
James Wurster
Affiliation:
School of Physics and Astronomy, University of Exeter, Exeter, United Kingdom Scottish Universities Physics Alliance (SUPA), School of Physics and Astronomy, University of St. Andrews, United Kingdom
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Abstract

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We present Ekster, a new method for simulating the formation and dynamics of individual stars in a relatively low-resolution gas background. Here, we use Ekster to simulate star cluster formation in two different regions from each of two galaxy models with different spiral potentials. We simulate these regions for 3 Myr to study where and how star clusters form. We find that massive GMC regions form more massive clusters than sections of spiral arms. Additionally we find that clusters form both by accreting gas and by merging with other proto-clusters, the latter happening more frequently in the denser GMC regions.

Type
Contributed Paper
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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