Computer models of colliding galaxies

Details Computer models of colliding galaxies Computer models of colliding galaxies

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pht....46c..54b&link_type=abstract

Physics Today (ISSN 0031-9228), vol. 46, no. 3, p. 54-61.

Physics

6

Computerized Simulation, Elliptical Galaxies, Interacting Galaxies, Spiral Galaxies, Star Formation, Galactic Structure, Irregular Galaxies, Stellar Orbits

Scientific paper

The techniques and results of attempts to model colliding galaxies using numerical simulations and computer models are presented. The ideal-gas model used for the interstellar medium and its disadvantages are described. Attention is given to gas dynamics and techniques for solving the hydrodynamical equations of motion. Collisionless dynamics and the calculation of gravitational forces in self-consistent simulations are discussed. Results of a simulation of the collision of spiral galaxies are given and merger remnant formation and dynamics are described. Gas dynamics in starburst models and the inclusion of gas dynamics in the numerical simulation of colliding galaxies are examined. Future prospects in numerical simulations and computer models of galactic interactions are discussed.

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