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Numerical Simulations of Interacting Disk Galaxies

Published online by Cambridge University Press:  12 April 2016

Masafumi Noguchi
Masafumi Noguchi*
Affiliation:
University of Wales, College of Cardiff Cardiff, United Kingdom

Extract

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Galaxy-galaxy interactions have long attracted many extragalactic astronomers in various aspects. A number of computer simulations performed in the 1970s have successfully reproduced the peculiar morphologies observed in interacting disk galaxies and clarified that tidal deformation explains most of the observed global peculiarities. However, most of these simulations have used test particles in modelling the disk component. Tidal response of a self-gravitating disk remains to be further clarified.

Another topic which is intensely discussed at present is the relation between galaxy-galaxy interactoins and activity. Many observations suggest that interactions trigger strong starbursts and possibly active galactic nuclei (AGN). However, the detailed mechanism of triggering is not yet clear. It is vital here to understand the dynamics of interstellar gas.

Type
IX. Theory of Interaction Stimulated Effects
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 711 - 716
Copyright
Copyright © NASA 1990

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