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Weak lensing in scalar-tensor theories of gravity

Carlo Schimd·Jean-Philippe Uzan·Alain Riazuelo
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Abstract

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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Carlo Schimd, Jean-Philippe Uzan, Alain Riazuelo. 2004-12-06. Weak lensing in scalar-tensor theories of gravity. https://doi.org/10.1103/physrevd.71.083512

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