An invited review presented at IAU Symposium 186,
Galaxy Interactions at Low and High Redshifts,
Kyoto, Japan, August 26-30, 1997.
This review focus on some issues which seem relevant to recent discussions: (1) how halo structure influences tail length, (2) the fate of power-law density cusps, (3) the results of unequal-mass disk galaxy mergers, and (4) the behavior of hot and cold gas in merging disk galaxies.
A gzipped postscript copy of this paper is available. The text will be published in Galaxy Interactions at Low and High Redshifts, eds. J.E. Barnes & D.B. Sanders (Kluwer: Dordrecht).
Last modified: November 4, 1998