Energetic neutrinos from the Sun and Earth and dark matter substructure

Details Energetic neutrinos from the Sun and Earth and dark matter substructure Energetic neutrinos from the Sun and Earth and dark matter substructure

2009-12-08

arxiv.org/abs/0912.1573v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

To appear in the AIP Proceedings of the CCAPP Symposium 2009

Scientific paper

Dark matter halos contain a wealth of substructure in the form of subhalos and tidal streams. Enhancements in the dark matter density of these regions leads to enhanced rates in direct detection experiments, as well as enhanced dark matter capture rates in the Sun and the Earth. Direct detection experiments probe the present-day dark matter density, while energetic neutrinos probe the past history of the dark matter density along the solar system's orbit about the Galactic center. We discuss how an elevated energetic neutrino flux can be used to probe the level of substructure present at the Galactic radius of the solar system.

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