Abstract
view Abstract Citations (5) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Relaxation Times in Two-dimensional Galaxy Simulations Schroeder, Michael C. ; Comins, Neil F. Abstract The equilibration and associated relaxation times in a stable, axisymmetric, constant Q disk of N-body particles are measured from the time rate of increase of Toomre's Q. As a result, the recent (1988) suggestion by White that two-body relaxation in two-dimensional simulations is not always negligible is tested and is found to be a major cause of heating of the system. The effect on disk equilibration rates of particle number, N, potential softening factor, d, and initial velocity dispersion, Q, are measured and found to scale roughly as τ is proportional to N dQ^3^. Publication: The Astrophysical Journal Pub Date: November 1989 DOI: 10.1086/167988 Bibcode: 1989ApJ...346..108S Keywords: Computational Astrophysics; Galactic Structure; Relaxation Time; Kinetic Energy; Many Body Problem; Monte Carlo Method; Two Dimensional Models; Astrophysics; GALAXIES: INTERNAL MOTIONS; GALAXIES: STRUCTURE; NUMERICAL METHODS full text sources ADS |
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