Abstract
We discuss a new N-body simulation method for studying black hole binary dynamics. This method avoids previous numerical problems due to large mass ratios and trapped orbits with short periods. A treatment of relativistic effects is included when the associated time-scale becomes small. Preliminary results with up to N = 2.4 × 10 5 particles are obtained showing systematic eccentricity growth until the relativistic regime is reached, with subsequent coalescence in some cases.
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Aarseth, S.J.: 1972, Binary evolution in stellar systems, in: M. Lecar (ed.), Gravitational N-Body Problem, D. Reidel Publishing Co., Dordrecht, pp. 88-98.
Aarseth, S.J.: 1999, From NBODY1 to NBODY6: The growth of an industry, PASP, 111, 1333-1346.
Aarseth, S.J. and Zare, K.: 1974, A regularization of the three-body problem, Cel. Mech. 10, 185-205.
Bulirsch, R. and Stoer, J.: 1966, Numerical treatment of differential equations by extrapolation methods, Num. Math. 8, 1-13.
Makino, J.: 1997, Merging of galaxies with central black holes, II. Evolution of the black hole binary and the structure of the core, Astrophys. J. 478, 58-65.
Mikkola, S. and Aarseth, S.J.: 1993, An implementation of N-body chain regularization, Cel. Mech. Dyn. Ast. 57, 439-459.
Mikkola, S. and Aarseth, S.J.: 2002, A time-transformed leapfrog scheme, Cel. Mech. Dyn. Ast. 84, 343-354.
Milosavljević, M. and Merritt, D.: 2001, Formation of galactic nuclei, Astrophys. J. 563, 34-62.
Quinlan, G.D. and Hernquist, L.: 1997, The dynamical evolution of massive black hole binaries, II. Self-consistent N-body integrations, New Astron. 2, 533-554.
Soffel, M.H.: 1989, Relativity in Astrometry, Celestial Mechanics and Geodesy, Springer, Berlin, p. 141.
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Aarseth, S. Black hole binary dynamics. Astrophysics and Space Science 285, 367–372 (2003). https://doi.org/10.1023/A:1025492510715
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DOI: https://doi.org/10.1023/A:1025492510715