Journal Article

The effect of a central supermassive black hole on gas fuelling

Hiroyuki Fukuda, Keiichi Wada and Asao Habe

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 295, issue 2, pages 463-474
Published in print April 1998 | ISSN: 0035-8711
Published online April 1998 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1046/j.1365-8711.1998.01324.x
The effect of a central supermassive black hole on gas fuelling

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Abstract

When a supermassive black hole exists in the centre of a galaxy, an additional inner Lindblad resonance (ILR) exists inside the usual ILRs. We study gas dynamics in a weakly barred potential with a central supermassive black hole by using 2D numerical simulations, and we investigate the effect of the additional ILR on the fuelling of gas into nuclear starburst regions or active galactic nuclei (AGNs). Our numerical results show that strong trailing spiral shocks are formed at the resonance region, and that the gas in the shock region is rapidly fuelled into a central region and makes a nuclear gas ring. As a result, a large amount of gas is concentrated in the nuclear region beyond the ILR in a dynamical time-scale.

Keywords: methods: numerical; ISM: kinematics and dynamics; galaxies: nuclei; galaxies: starburst.

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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