Shape of Clusters as a Probe of Screening Mechanisms in Modified Gravity
Cosmology and Nongalactic Astrophysics
2014-09-04 v2 Astrophysics of Galaxies
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Scalar fields are crucial components in high energy physics and extensions of General Relativity. The fact they are not observed in the solar system may be due to a mechanism which screens their presence in high dense regions. We show how observations of the ellipticity of galaxy clusters can discriminate between models with and without scalar fields and even between different screening mechanisms. Using nowadays X-ray observations we put novel constraints on the different models.
Keywords
Cite
@article{arxiv.1205.5775,
title = {Shape of Clusters as a Probe of Screening Mechanisms in Modified Gravity},
author = {Claudio Llinares and David F. Mota},
journal= {arXiv preprint arXiv:1205.5775},
year = {2014}
}
Comments
4 pages, 3 figures, matches version accepted for publication in PRL