Weak lensing in scalar-tensor theories of gravity

Details Weak lensing in scalar-tensor theories of gravity Weak lensing in scalar-tensor theories of gravity

2004-12-06

arxiv.org/abs/astro-ph/0412120v1

Phys.Rev. D71 (2005) 083512

Astronomy and Astrophysics

Astrophysics

25 pages, 29 figures

Scientific paper

10.1103/PhysRevD.71.083512

This article investigates the signatures of various models of dark energy on weak gravitational lensing, including the complementarity of the linear and non-linear regimes. It investigates quintessence models and their extension to scalar-tensor gravity. The various effects induced by this simplest extension of general relativity are discussed. It is shown that, given the constraints in the Solar System, models such as a quadratic nonminimal coupling do not leave any signatures that can be detected while other models, such as a runaway dilaton, which include attraction toward general relativity can let an imprint of about 10%.

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