Scalar-tensor cosmological simulations - AstrophysicsReportar como inadecuado




Scalar-tensor cosmological simulations - Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

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

Fuente: https://arxiv.org/







Documentos relacionados