We study the implications of Planck data for models of dark energy (DE) and modified gravity
(MG) beyond the standard cosmological constant scenario. We start with cases where the …

Chameleon fields may modify gravity on cluster scales while recovering general relativity
locally. This article reviews signatures of chameleon modifications in the nonlinear …

The current standard cosmological model is constructed within the framework of general
relativity with a cosmological constant Λ, which is often associated with dark energy, and …

We present the current accounting of systematic effect uncertainties for the Low Frequency
Instrument (LFI) that are relevant to the 2015 release of the Planck cosmological results …

We implement the effective field theory (EFT) approach to dark energy and modified gravity
in the public Einstein-Boltzmann solver camb. The resulting code, which we dub eftcamb, is …

In order to explain cosmic acceleration without invoking``dark''physics, we consider f (R)
modified gravity models, which replace the standard Einstein-Hilbert action in General …

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

Over the past few decades, general relativity and the concordance ΛCDM model have been
successfully tested using several different astrophysical and cosmological probes based on …

We study the late-time integrated Sachs–Wolfe (ISW) effect in f (R) gravity using N-body
simulations. In the f (R) model under study, the linear growth rate is larger than that in …

We constrain f (R) and chameleon-type modified gravity in the framework of the Berstchinger-
Zukin parametrization using the recently released Planck data, including both the cosmic …