Cosmological simulations using a static scalar-tensor theory

TL;DR

This paper introduces cosmological N-body simulations within a static scalar-tensor gravity framework, revealing modifications to structure formation due to a Yukawa-type potential, and presents initial results on density and velocity profiles.

Contribution

It demonstrates the implementation of ΛCDM N-body simulations incorporating a static scalar-tensor theory, highlighting the impact of a non-minimally coupled scalar field on cosmic structure formation.

Findings

Modified gravitational potential with Yukawa term affects structure formation

Preliminary density and velocity profiles of massive groups are computed

Initial results suggest deviations from standard ΛCDM predictions

Abstract

We present $\Lambda$CDM $N$-body cosmological simulations in the framework of a static general scalar-tensor theory of gravity. Due to the influence of the non-minimally coupled scalar field, the gravitational potential is modified by a Yukawa type term, yielding a new structure formation dynamics. We present some preliminary results and, in particular, we compute the density and velocity profiles of the most massive group.