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arXiv · 1109.4585

The post-Newtonian limit in C-theories of gravitation

Tomi S. Koivisto
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Abstract

C-theory provides a unified framework to study metric, metric-affine and more general theories of gravity. In the vacuum weak-field limit of these theories, the parameterized post-Newtonian (PPN) parameters $\beta$ and $\gamma$ can differ from their general relativistic values. However, there are several classes of models featuring long-distance modifications of gravity but nevertheless passing the Solar system tests. Here it is shown how to compute the PPN parameters in C-theories and also in nonminimally coupled curvature theories, correcting previous results in the literature for the latter.

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Tomi S. Koivisto. 2011-09-21. The post-Newtonian limit in C-theories of gravitation. https://doi.org/10.1103/physrevd.84.121502

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