Dark matter capture by the Sun: revisiting velocity distribution uncertainties

Understand

Among the different strategies aiming to detect WIMP dark matter (DM), a neutrino signal coming from the Sun would be a smoking gun.

• This possibility relies on the DM capture by the Sun driven by the local DM distribution assumptions: the local mass density and the velocity distribution.
• In this context, we revisit those astrophysical hypotheses (also relevant for direct detection).
• We focus especially on the DM velocity distribution considering different possibilities beyond the popular Maxwellian distribution.