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KETJU: Post-Newtonian-Accurate Supermassive Black Hole Dynamics in GADGET-3

  • Antti Rantala (a1), Pauli Pihajoki (a1) and Peter H. Johansson (a1)

Abstract

We present KETJU, a new regularized tree code based on algorithmic chain regularization and implemented into Gadget-3. This new code is able to follow simultaneously galactic-scale dynamical and astrophysical processes and the small-scale supermassive black hole binary dynamics. We present here the general idea of this new code and show a test simulation of black hole binary dynamics in a galaxy merger of two massive elliptical galaxies. The separation of the black holes at the time of the merger is several orders of magnitude smaller in KETJU than when compared to ordinary Gadget-3 simulations. The merger timescale is also longer by 100 − 200 Myr.

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References

Hide All
Aarseth, S. J. 1999, PASP, 111, 1333
Amaro-Seoane, P., Aoudia, S., Babak, S., et al. 2012, Classical and Quantum Gravity, 29, 124016
Johansson, P. H., Naab, T., & Burkert, A. 2009, APJ, 690, 802
Karl, S. J., Aarseth, S. J., Naab, T., Haehnelt, M. G., & Spurzem, R. 2015, MNRAS, 452, 2337
Kormendy, J. & Richstone, D. 1995, ARAA, 33, 581
Kustaanheimo, P. & Stiefel, E. 1965, J. Reine Angew. Math, 218, 204
Maggiore, M. 2007, Gravitational Waves: Volume 1: Theory and Experiments
Merritt, D. & Milosavljević, M. 2005, Living Reviews in Relativity, 8,
Mikkola, S. & Valtonen, M. J. 1992, MNRAS, 259, 115
Mikkola, S. & Aarseth, S. J. 1993, Celestial Mechanics and Dynamical Astronomy, 57, 439
Mikkola, S. & Tanikawa, K. 1999, MNRAS, 310, 745
Mikkola, S. & Merritt, D. 2006, MNRAS, 372, 219
Mikkola, S. & Merritt, D. 2008, AJ, 135, 2398
Preto, M. & Tremaine, S. 1999, AJ, 118, 2532
Peters, P. C. & Mathews, J. 1963, Physical Review, 131, 435
Quinlan, G. D. 1996, New Astronomy, 1, 35
Springel, V. 2005, MNRAS, 364, 1105
White, S. D. M. & Rees, M. J. 1978, MNRAS, 183, 341
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Keywords

KETJU: Post-Newtonian-Accurate Supermassive Black Hole Dynamics in GADGET-3

  • Antti Rantala (a1), Pauli Pihajoki (a1) and Peter H. Johansson (a1)

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