Modified gravity and dark matter

Abstract

The fundamental nature of Dark Matter (DM) has not been established. Indeed, beyond its gravitational effects, DM remains undetected by present experiments. In this situation, it is reasonable to wonder if other alternatives can effectively explain the observations usually associated with the existence of DM. The modification of the gravitational interaction has been studied in this context from many different approaches. However, the large amount of different astrophysical evidences makes difficult to think that modified gravity can account for all these observations. On the other hand, if such a modification introduces new degrees of freedom, they may work as DM candidates. We will summarize the phenomenology of these gravitational dark matter candidates by analyzing minimal models.

5 pages, 1 figure, invited contribution to TAUP 2015, to appear in the Proceedings of the XIV International Conference on Topics in Astroparticle and Underground Physics, 7-11 September 2015,Torino, Italy

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Cited by in corpus (8)

• Wormhole solutions in symmetric teleparallel gravity
• Effective interactions in Ricci-Based Gravity models below the non-metricity scale
• Initial conditions for the scalaron dark matter
• Traversable Wormholes in Higher Dimensional Theories of Gravity
• Spherically symmetric configurations in the quadratic $f(R)$ gravity
• Scalaron dark matter and the thermal history of the universe
• Interactions of the scalaron dark matter in $f(R)$ gravity
• Effective scalaron--photon interaction in $f(R)$ gravity