Computer Science – Performance
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...6e..24l&link_type=abstract
Neutron Stars and Black Holes in Star Clusters, 26th meeting of the IAU, Joint Discussion 6, 17-18 August 2006, Prague, Czech Re
Computer Science
Performance
Scientific paper
Over the last decades, due to increasing performance of computer systems, a large number of highly effective integrators for dynamical systems have been developed for different purposes. Among those are integrators for multi-particle systems such as star clusters (e.g., Aarseth 1999), and for highly accurate long-term integration of planetary systems, where relatively few particles move on nearly circular orbits. However, capabilities of currently available integrators are limited when it comes to multi-particle systems with a massive central particle. In this work, I am investigating integrators combining the advantages of available integrators, such as highly accurate long-term integration of Keplerian orbits and adaptive timesteps allowing for efficient integration of perturbations. This can be useful for fully collisional simulations of stellar systems comprising a massive black hole, e. g. the galactic centre.
Baumgardt Holger
Löckmann Ulf
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