N-body simulations, dark disks and implications for direct and indirect detection

par Fu-Sin Ling (ULB Bruxelles)

jeudi 12 nov. 2009, 11:00 → 12:00 Europe/Paris

Auditorium M. Vivargent (LAPTH)

Recent N-body simulations show that the galactic dark matter halo could include a thick disky component that co-rotates with the stellar disk. The possible morphologies of the dark disk depend on the galaxy’s merger history. The observational consequences for dark matter signals are inferred from the velocity distributions at the Sun’s location. For direct detection, these include an enhancement of low-energy recoil events, an enhancement of the modulation signal as seen by DAMA, and a shift in the modulation phase. For indirect detection, the neutrino signal from the Sun or the Earth can be boosted by an enhanced capture rate. The central question that will be addressed is : “Do dark matter signals strongly deviate from the Maxwellian expectation ?

Slides fusin_ling.pdf