Cosmic history of chameleonic dark matter in F ( R ) gravity

Cosmic history of chameleonic dark matter in F ( R ) gravity

We study the cosmic history of the scalaron in F(R) gravity with constructing the time evolution of the cosmic environment and discuss the chameleonic dark matter based on the chameleon mechanism in the early and current Universe. We then find that the scalaron can be a dark matter. We also propose...

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Veröffentlicht in:Physical review. D 2018-03, Vol.97 (6), Article 064037
Hauptverfasser: Katsuragawa, Taishi, Matsuzaki, Shinya
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Dark matter
Gravitation
Universe
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Matsuzaki, Shinya
description We study the cosmic history of the scalaron in F(R) gravity with constructing the time evolution of the cosmic environment and discuss the chameleonic dark matter based on the chameleon mechanism in the early and current Universe. We then find that the scalaron can be a dark matter. We also propose an interesting possibility that the F(R) gravity can address the coincidence problem.
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subjects Dark matter
Gravitation
Universe
title Cosmic history of chameleonic dark matter in F ( R ) gravity
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