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Formation process of the Orion Nebula Cluster

Published online by Cambridge University Press:  20 January 2023

Michiko S. Fujii Open the ORCID record for Michiko S. Fujii [Opens in a new window] ,
Long Wang Open the ORCID record for Long Wang [Opens in a new window] ,
Takayuki R. Saitoh ,
Yutaka Hirai  and
Yoshito Shimajiri
Michiko S. Fujii
Affiliation:
The University of Tokyo
Long Wang
Affiliation:
Sun Yat-sen University
Takayuki R. Saitoh
Affiliation:
Kobe University
Yutaka Hirai
Affiliation:
University of Notre Dame Tohoku University
Yoshito Shimajiri
Affiliation:
National Astronomical Observatory of Japan
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Abstract

The Orion Nebula Cluster (ONC) is one of the nearest open clusters, which we can directly compare to numerical simulations. We performed a simulation of star cluster formation similar to the ONC using our new N-body/smoothed particle hydrodynamics code, ASURA+BRIDGE. We found that the hierarchical formation of star clusters via clump mergers can explain the observed three peaks in the stellar age distribution as well as the dynamically anisotropic structures of the ONC.

Keywords

methods: n-body simulationsmethods: numericalopen clusters and associations: individual (Orion Nebula Cluster)
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S362: The Predictive Power of Computational Astrophysics as a Discovery Tool , June 2020 , pp. 258 - 261
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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