abstract: The abstract to the thesis, in ASCII thesis : The thesis itself, in compressed postscript format (454 kb). Figure : Figure 2, from chapter 7, in compressed postscript format (25.5 kb).
The XStar program is not a "serious" n-body problem solver, it is actually just a X-windows screen saver. However, it does have the option of using any one of a number of ODE integration methods, for Euler's to a Gragg-Bulirsch-Stoer method. I also wrote up a paper that gives an introduction to the N-body problem. I am sure that everything it it you would already know, but for those people who are just getting into the N-body problem, it might be of some use.
S. Pfalzner & P. Gibbon, 'Many Body Tree Methods in Physics', CUP 1996, ISBN 0-521-49564-4 (hardback).We are also interested in using tree codes for collisional and collisionless plasma simulation. An implementation of the Barnes-Hut method for periodic plasma systems can be found in:
S. Pfalzner & P. Gibbon, Computer Physics Communications 79, 24-38 (1994)Reprints available from pfalzner@astro.uni-jena.de on request.
This is mirrored by Gavin Pringle at Napier in the UK.