No need for dark matter in galaxy clusters within Galileon theory

30 Oct 2016 Salzano Vincenzo Mota David F. Dabrowski Mariusz P. Capozziello Salvatore

Modified gravity theories with a screening mechanism have acquired much interest recently in the quest for a viable alternative to General Relativity on cosmological scales, given their intrinsic property of being able to pass Solar System scale tests and, at the same time, to possibly drive universe acceleration on much larger scales. Here, we explore the possibility that the same screening mechanism, or its breaking at a certain astrophysical scale, might be responsible of those gravitational effects which, in the context of general relativity, are generally attributed to Dark Matter... (read more)

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  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS