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Galactic Halos in MONDian Cosmological Simulations
Published online by Cambridge University Press: 19 May 2006
Abstract
We present results derived from a high-resolution cosmological N-body simulation in which the equations of motion have been changed to account for MOdified Newtonian Dynamics (MOND). It is shown that a low-Ω0 MONDian model with an appropriate choice for the normalisation σ8 of the primordial density fluctuations can lead to similar clustering properties at redshift z = 0 as the commonly accepted (standard) ΛCDM model. However, such a model shows no significant structures at high redshift with only very few objects present beyond z > 3. For the current implementation of MOND density profiles of gravitationally bound objects at z = 0 can though still be fitted by the universal NFW profile.
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- © EAS, EDP Sciences, 2006