Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-12-02T18:08:29.145Z Has data issue: false hasContentIssue false
  • English
  • Français

Dynamics of supermassive black holes

Published online by Cambridge University Press:  26 May 2016

Marc Hemsendorf ,
Nils Dorband  and
David Merritt
Marc Hemsendorf
Affiliation:
Department of Physics and Astronomy, Rutgers, the State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
Nils Dorband
Affiliation:
Department of Physics and Astronomy, Rutgers, the State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA
David Merritt
Affiliation:
Department of Physics and Astronomy, Rutgers, the State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We are showing first results from simulations studying the effect of Brownian motion of the central mass on a cusp. N-body simulations of cuspy stellar systems around supermassive black holes represent a very challenging computational task. The wide range of dynamical timescales combined with large particle numbers required here leads us to the implementation of a systolic force calculation into a Hermite direct force block time-step scheme. With this new algorithm, we are able to handle particle numbers as large as 900000 on the parallel computers accessible to us. Due to their extraordinary parallelism (up to 98% and more) we suggest to use the described schemes on a computer cluster where each computing node is connected to a GRAPE board.

Type
Posters
Information
Symposium - International Astronomical Union , Volume 208: Astrophysical Supercomputing using Particle Simulations , 2003 , pp. 405 - 406
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Kung, H. T. & Leiserson, C. E. 1978, in Sparse matrix proceedings, ed. Duff, I. S. & Stewart, G. W. (Philadelphia: SIAM), 256 Google Scholar
Makino, J. & Aarseth, S. J. 1992, PASJ, 44, 141 Google Scholar
Spitzer, L. 1987, Dynamical evolution of globular clusters (Princeton: Princeton University Press)Google Scholar