Regularization Tools for Binary Interactions
| dc.creator | Aarseth, Sverre J. | |
| dc.date | 2001-10-05 | |
| dc.date.accessioned | 2026-07-07T02:00:40Z | |
| dc.date.available | 2026-07-07T02:00:40Z | |
| dc.description | We first discuss two-body and chain regularization methods for direct N-body simulations on HARP-2 and GRAPE-6. The former is used for accurate integration of perturbed binaries and hierarchies, whereas the latter deals with strong interactions involving binaries. Combined with a powerful stability criterion for hierarchical systems, this versatile treatment provides an efficient way of studying all dynamical processes in globular clusters containing a realistic population of primordial binaries. These algorithms are also ideal for modelling a variety of astrophysical effects, such as averaging over Kozai cycles, tidal circularization, spin-orbit coupling and stellar collisions, where well-defined elements are used to describe near-singular solutions. We also describe a new time-transformed leapfrog scheme which has been developed to deal with black-hole binaries in galactic centres. This formulation is valid for large mass ratios and dominant two-body motions in a compact subsystem can be treated accurately in the post-Newtonian approximation. This method has been combined with the existing regularization algorithms into a new simulation code NBODY7. Some preliminary results of a test problem illustrating possible applications are presented. | |
| dc.description | Latex (uses macro newpasp.sty), submitted to Proceedings IAU208 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0110148 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0110148 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/3486 | |
| dc.subject | Astrophysics | |
| dc.title | Regularization Tools for Binary Interactions | |
| dc.type | text |