The dynamics of disk galaxy mergers
The long and short term evolution of mergers involving disk and disk-halo galaxies has been studied by using self-gravitating N-body models with N~2000. The stability of isolated, pure disk models has been examined and it has been found that such models can be made stable to global non-axisymmetric modes by the use of sufficient gravity softening. Disks stablised by softened gravity have been used to investigate the spin dependence of zero impact parameter collisions and the effect of...[Show more]
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