We analyse modelling techniques for the large-scale structure formed in scalar-tensor
theories of constant Brans-Dicke parameter which match the concordance model …

On cosmological scales, observations of the cluster abundance currently place the strongest
constraints on f (R) gravity. These constraints lie in the large-field limit, where the …

We refine the mass and environment dependent spherical collapse model of chameleon f
(R) gravity by calibrating a phenomenological correction inspired by the parameterized post …

Viable modifications of gravity that may produce cosmic acceleration need to be screened in
high-density regions such as the Solar System, where general relativity is well tested …

In chameleon dark energy models, local gravity constraints tend to rule out parameters in
which observable cosmological signatures can be found. We study viable chameleon …

In this work we systematically study the linear and nonlinear structure formation in
chameleon theories of modified gravity, using a generic parameterisation which describes a …

We study the halo mass function (HMF) in modified gravity (MG) models using a set of large
N-body simulations—the elephant suite. We consider two popular beyond-general-relativity …

In chameleon field theories, a scalar field can couple to matter with gravitational strength
and still evade local gravity constraints due to a combination of self-interactions and the …

We model the chameleon effect on cosmological statistics for the modified gravity f (R)
model of cosmic acceleration. The chameleon effect, required to make the model compatible …

In theories of modified gravity with the chameleon screening mechanism, the strength of the
fifth force depends on environment. This induces an environment dependence of structure …