Cosmological simulations of screened modified gravity out of the static approximation: effects on matter distribution

Abstract

In the context of scalar tensor theories for gravity, there is a universally adopted hypothesis when running N-body simulations that time derivatives in the equation of motion for the scalar field are negligible. In this work we propose to test this assumption for one specific scalar-tensor model with a gravity screening mechanism: the symmetron. To this end, we implemented the necessary modifications to include the non-static terms in the N-body code Ramses. We present test cases and results from cosmological simulations. Our main finding when comparing static vs. non-static simulations is that the global power spectrum is only slightly modified when taking into account the inclusion of non-static terms. On the contrary, we find that the calculation of the local power spectrum gives different measurements. Such results imply one must be careful when assuming the quasi-static approximation when investigating the environmental effects of modified gravity and screening mechanisms in structure formation of halos and voids distributions.

12 pages, 8 figures, matches version accepted for publication in PRD

References in corpus (7)

• The Cosmology of Modified Gauss-Bonnet Gravity
• N-body Simulations for f(R) Gravity using a Self-adaptive Particle-Mesh Code
• Screening Modifications of Gravity through Disformally Coupled Fields
• Non-linear evolution of f(R) cosmologies I: methodology
• Initial Conditions for Large Cosmological Simulations
• Relativistic scalar fields and the quasi-static approximation in theories of modified gravity
• Microscopic and Macroscopic Behaviors of Palatini Modified Gravity Theories

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