Figure: N-body simulation for the Antennae Galaxies

N-body simulations by A. Toomre and J. Toomre, Astrophysical Journal, 178, 623-666 (1972).
(Copyright: Astrophysical Journal)

In their seminal paper, Toomre and Toomre also constructed a model that resembles the Antennae Galaxies.

A pdf version of Toomre and Toomre's paper is available here.