Cosmological Simulations of Multicomponent Cold Dark Matter
Issue Date
2014-08-15Author
Medvedev, Mikhail V.
Publisher
American Physical Society
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
The nature of dark matter is unknown. A number of dark matter candidates are quantum flavor-mixed particles but this property has never been accounted for in cosmology. Here we explore this possibility from the first principles via extensive N-body cosmological simulations and demonstrate that the two-component dark matter model agrees with observational data at all scales. Substantial reduction of substructure and flattening of density profiles in the centers of dark matter halos found in simulations can simultaneously resolve several outstanding puzzles of modern cosmology. The model shares the “why now?” fine-tuning caveat pertinent to all self-interacting models. Predictions for direct and indirect detection dark matter experiments are made.
Description
This is the published version. Copyright 2014 American Physical Society
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Citation
Medvedev, Mikhail V. "Cosmological Simulations of Multicomponent Cold Dark Matter." Phys. Rev. Lett. Physical Review Letters 113.7 (2014). http://dx.doi.org/10.1103/PhysRevLett.113.071303
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