EAS Publications Series
Volume 44, 2010JENAM 2008: Grand Challenges in Computational Astrophysics
|Page(s)||37 - 40|
|Published online||20 January 2011|
H. Wozniak and G. Hensler (eds)
EAS Publications Series, 44 (2010) 37-40
N-body simulations in modified Newtonian dynamics
Astronomy Department, University of Bologna,
via Ranzani 1, 40127
2 INAF-Bologna Astronomical Observatory, via Ranzani 1, 40127 Bologna, Italy
We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newtonian dynamics (MOND). We found that a few fundamental dynamical processes are profoundly different in MOND and in Newtonian gravity with dark matter. In particular, violent relaxation, phase mixing and galaxy merging take significantly longer in MOND than in Newtonian gravity, while dynamical friction is more effective in a MOND system than in an equivalent Newtonian system with dark matter.
© EAS, EDP Sciences 2011
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