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Since its first formulation in 1983, Milgromian dynamics (MOND) has been verysuccessful in predicting the gravitational potential of galaxies from thedistribution of baryons alone, including general scaling relations and detailedrotation curves of large statistical samples of individual galaxies covering alarge range of masses and sizes. Most predictions however rely on staticmodels, and only a handful of N-body codes have been developed over the yearsto investigate the consequences of the Milgromian framework for the dynamics ofcomplex evolving dynamical systems. In this work, we present a new MilgromianN-body code, which is a customized version of the RAMSES code (Teyssier 2002)and thus comes with all its features: it includes particles and gas dynamics,and importantly allows for high spatial resolution of complex systems due tothe adaptive mesh refinement (AMR) technique. It further allows the directcomparison between Milgromian simulations and standard Newtonian simulationswith dark matter particles. We provide basic tests of this customized code anddemonstrate its performance by presenting N-body computations ofdark-matter-free spherical equilibrium models as well as dark-matter-free diskgalaxies in Milgromian dynamics.

Phantom of RAMSES (POR): A new Milgromian dynamics N-body code