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arXiv · 1209.0836

Structure formation in a nonlocally modified gravity model

Sohyun Park·Scott Dodelson
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Abstract

We study a nonlocally modified gravity model proposed by Deser and Woodard which gives an explanation for current cosmic acceleration. By deriving and solving the equations governing the evolution of the structure in the Universe, we show that this model predicts a pattern of growth that differs from standard general relativity (+dark energy) at the 10-30% level. These differences will be easily probed by the next generation of galaxy surveys, so the model should be tested shortly.

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Sohyun Park, Scott Dodelson. 2013-02-06. Structure formation in a nonlocally modified gravity model. https://doi.org/10.1103/physrevd.87.024003

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