We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newto- nian 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.

N-body simulations in modified Newtonian dynamics

NIPOTI, CARLO;CIOTTI, LUCA
2010

Abstract

We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newto- nian 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.
Grand Challenges in Computational Astrophysics
37
40
C. Nipoti; P. Londrillo; L. Ciotti
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/64572
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