Non-linear dynamics of the minimal theory of massive gravity

Understand

We investigate cosmological signatures of the minimal theory of massive gravity (MTMG).

• To this aim, we simulate the normal branch of the MTMG by employing the \textsc{Ramses} \mbox{$N$-body} code and extending it with an effective gravitational constant $G_{\rm eff}$.
• We implement an environment-dependent $G_{\rm eff}$ as a function of the graviton mass and the local energy density as predicted by MTMG.
• We find that halo density profiles are not a good probe for MTMG, because deviations from general relativity (GR) are quite small.