Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-04-14
Astrophys.J. 451 (1995) 533-541
Astronomy and Astrophysics
Astrophysics
Accepted for publication in The Astrophysical Journal, to appear October 1, 1995; 16 pages including 4 figures, self-unpacking
Scientific paper
10.1086/176241
The stability of a galaxy model is most easily assessed through N-body simulation. Particle-mesh codes have been widely used for this purpose, since they enable the largest numbers of particles to be employed. We show that the functional expansion technique, originally proposed by Clutton-Brock for other simulation problems, is in fact superior for stability work. For simulations of linear evolution it is not much slower than grid methods using the same number of particles, and reproduces analytical results with much greater accuracy. This success rests on its ability to represent global modes with a modest number of basis functions; grid methods may be more effective for other applications, however. Our conclusions are based on implementations of functional expansion and grid algorithms for disk galaxies.
Earn David J. D.
Sellwood Jeremy A.
No associations
LandOfFree
THE OPTIMAL N-BODY METHOD FOR STABILITY STUDIES OF GALAXIES does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with THE OPTIMAL N-BODY METHOD FOR STABILITY STUDIES OF GALAXIES, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and THE OPTIMAL N-BODY METHOD FOR STABILITY STUDIES OF GALAXIES will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-279946