2014/03/31 by Lucas Lombriser · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc
paper · pdf · doi:10.1002/andp.201400058
published as Annalen der Physik 526, 259 (2014) · 24 pages, 5 figures, 1 table; invited review article; v2 matches published version
arxiv created 2015/01/04 · arxiv updated 2015/01/06
Chameleon fields may modify gravity on cluster scales while recovering general relativity locally. This article reviews signatures of chameleon modifications in the nonlinear cosmological structure, comparing different techniques to model them, summarising the current state of observational constraints, and concluding with an outlook on prospective constraints from future observations and applications of the analytic tools developed in the process to more general scalar-tensor theories. Particular focus is given to the Hu-Sawicki and designer models of f(R) gravity.