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Bar-Driven Star and Star Cluster Formations and Gas Fueling to Galactic Center

Published online by Cambridge University Press:  09 June 2023

Hidenori Matsui Open the ORCID record for Hidenori Matsui [Opens in a new window] ,
Toshiyasu Masakawa ,
Asao Habe  and
Takayuki R. Saitoh
Hidenori Matsui
Affiliation:
National Institute of Technology, Asahikawa College, Asahikawa, Shunkodai 2-2-1-6, Asahikawa, Hokkaido, 071-8142, Japan
Toshiyasu Masakawa
Affiliation:
The Open University of Japan
Asao Habe
Affiliation:
Graduate School of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
Takayuki R. Saitoh
Affiliation:
Department of Planetology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan
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Abstract

In order to study gas evolution in the central region of a barred galaxy, we have performed numerical simulations of gas in the potential of the barred galaxy. We have found that the bar potential produces a gas ring within the central 1 kpc region. In the gas ring, active star and star cluster formations take place. Since the gas ring is dense enough to become self-gravitationally unstable, gas clouds form in the ring. These gas clouds interact gravitationally and collide with the other clouds. Such interaction and collision reduces their angular momentums effectively, and finally gas clouds fall into the galactic center. These processes triggers episodic gas fueling to the galactic center.

Keywords

galaxies: evolutiongalaxies: nucleigalaxies: star formationmethod: numerical
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S373: Resolving the Rise and Fall of Star Formation in Galaxies , August 2021 , pp. 143 - 146
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Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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