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arXiv · 0911.2139

PPN limit and cosmological gravitational waves as tools to constrain f(R)-gravity

Mariafelicia De Laurentis·Salvatore Capozziello·Shin'ichi Nojiri·Sergei Odintsov
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Abstract

We discuss the PPN Solar-System constraints and the GW stochastic background considering some recently proposed $f(R)$ gravity models which satisfy both cosmological and stability conditions. Using the definition of PPN-parameters $γ$ and $β$ in terms of $f(R)$-models and the definition of scalar GWs, we compare and discuss if it is possible to search for parameter ranges of $f(R)$-models working at Solar System and GW stochastic background scale.

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Mariafelicia De Laurentis, Salvatore Capozziello, Shin'ichi Nojiri, Sergei Odintsov. 2009-11-11. PPN limit and cosmological gravitational waves as tools to constrain f(R)-gravity. https://doi.org/10.1002/andp.201010444

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