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Abstract: We present $N$-body cosmlogical simulations in the framework of the Newtonianlimit of scalar-tensor theories of gravity. The scalar field is described by amodified Helmholtz equation with a source that is coupled to the standardPoisson equation of Newtonian gravity. The effective gravitational force isgiven by two contributions: the standard Newtonian potential plus a Yukawapotential stemming from massive scalar fields. In particular, we considersimulations of $\Lambda$CDM models and compute the density and velocityprofiles of the most massive groups found at z=0.

Autor: M.A. Rodriguez-Meza


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