Article thumbnail

Shape of Clusters as a Probe of Screening Mechanisms in Modified Gravity

By Claudio Llinares and David F. Mota

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.Comment: 4 pages, 3 figures, matches version accepted for publication in PR

Topics: Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, General Relativity and Quantum Cosmology, High Energy Physics - Theory
Publisher: 'American Physical Society (APS)'
Year: 2014
DOI identifier: 10.1103/PhysRevLett.110.151104
OAI identifier: oai:arXiv.org:1205.5775

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.