Fermionic dark matter: theory & phenomenology

Data: 
16/09/2020 - 14:00 - 15:00
Local: 
Remoto, com transmissão pela internet

Fermionic dark matter: theory & phenomenology

Carlos Argüelles 

Universidad Nacional de La Plata

We discuss the problem of dark matter halos, by assuming a quantum fermionic particle as the building block for the DM component, each of which self-gravitates in a quasi-virialized system of collisionless fermions. We show that fermionic DM accounting for the Pauli-principle and particle escape effects in the underlying phase-space distribution, leads to a more general density profile which developes a degenerate-core surrounded by a diluted-halo able to reproduce the rotation curves. In the case of our Galaxy, we show that the DM central core can produce analogous gravitational effects than the putative massive BH centered in SgrA*, for particle masses m~10-100 keV/c^2. The formation, stability, and other cosmological consequences of such novel fermionic DM profiles are also discussed.

 

Link da transmissão: https://www.youtube.com/watch?v=--eIdI9LIJw