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arXiv · 0810.0535

Modification to the Luminosity Distance Redshift Relation in Modified Gravity Theories

Éanna É. Flanagan·Eran Rosenthal·Ira M. Wasserman
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Abstract

We derive an expression for the luminosity distance as a function of redshift for a flat Robertson-Walker spacetime perturbed by arbitrary scalar perturbations possibly produced by a modified gravity theory with two different scalar perturbation potentials. Measurements of the luminosity distance as function of redshift provide a constraint on a combination of the scalar potentials and so they can complement weak lensing and other measurements in trying to distinguish among the various alternative theories of gravity.

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Éanna É. Flanagan, Eran Rosenthal, Ira M. Wasserman. 2009-02-11. Modification to the Luminosity Distance Redshift Relation in Modified Gravity Theories. https://doi.org/10.1103/physrevd.79.044032

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