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A New Fueling Process in a Weak Bar

Published online by Cambridge University Press:  12 April 2016

Keiichi Wada  and
Asao Habe
Keiichi Wada
Affiliation:
Center for Information Processing Education, Hokkaido University, Sapporo 060, Japan
Asao Habe
Affiliation:
Department of Physics, Hokkaido University, Sapporo 060, Japan

Abstract

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A massive gaseous disk in the central region of a galaxy sensitively responds to a weakly distorted potential, and a large amount of gas can be fed into within 1/20 of the core radius of the potential in several 107 yr. The ILRs, the dissipative nature of the gas, and the self-gravity of the gas are essential for triggering this effective fueling. We also found that a counterrotating gaseous core can be formed as a result of the fueling. Our result suggests that the merger of galaxies is not the only way to form the observed counterrotating core in galaxies.

Type
Part VIII. Counterrotating Phenomena, Models, Synthesis of Results
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 439 - 444
Copyright
Copyright © Astronomical Society of the Pacific 1996

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