Statistics – Computation
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...216...19m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 216, no. 1-2, June 1989, p. 19-30.
Statistics
Computation
9
Computational Astrophysics, Galactic Evolution, Interacting Galaxies, Interstellar Gas, Magnetohydrodynamics, Cartesian Coordinates, Computational Grids, Computerized Simulation, Galactic Clusters, Intergalactic Media, Numerical Flow Visualization
Scientific paper
Three-dimensional hydrodynamic simulations employing a nonequidistant Cartesian grid of up to 10 to the 6th points have been used to study the dynamic and thermal evolution of the warm component of the interstellar medium during a fast noncentral collision of two galaxies. Simulations were performed for various relative velocities, impact parameters, and numbers of grid points. Under the assumption of large relative velocity, it is shown that the amount of matter leaving the galaxies in the form of hot gas is roughly proportional to the cross-sectional volume of the two galaxies, which is equal to the total volume in the case of a head-on collision.
Hillebrandt Wolfgang
Mair G.
Mueller Ewald
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