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Dynamical Experiments on Models of Colliding Disk Galaxies

Published online by Cambridge University Press:  12 April 2016

Richard A. Gerber ,
Dinshaw S. Balsara  and
Susan A. Lamb
Richard A. Gerber
Affiliation:
Department of Physics, University of Illinois, Urbana, Illinois 61801
Dinshaw S. Balsara
Affiliation:
Department of Astronomy, University of Illinois, Urbana, Illinois 61801
Susan A. Lamb
Affiliation:
Department of Physics, University of Illinois, Urbana, Illinois 61801 Department of Astronomy, University of Illinois, Urbana, Illinois 61801

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Collisions between galaxies can induce large morphological changes in the participants and, in the case of colliding disk galaxies, bridges and tails are often formed. Observations of such systems indicate a wide variation in color (see Larson and Tinsley, 1978) and that some of the participants are experiencing enhanced rates of star formation, especially in their central regions (Bushouse 1986, 1987; Kennicutt et al., 1987, Bushouse, Lamb, and Werner, 1988). In this paper we describe progress we have made in understanding some of the dynamics of interacting galaxies using N-body stellar dynamical computer experiments, with the goal of extending these models to include a hydrodynamical treatment of the gas so that a better understanding of globally enhanced star formation will eventually be forthcoming.

Type
IX. Theory of Interaction Stimulated Effects
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 737 - 742
Copyright
Copyright © NASA 1990

References

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