Dark Matter Accretion in Neutron Stars

23 Jul 2018, 17:50
Room C

Room C


Dr Raghuveer Garani (Universite Libre De Bruxelles)


If Dark Matter (DM) interacts with nucleons and/or electrons it can be trapped in celestial bodies. For a Neutron Star (NS), DM accumulating in the center could form a core which could further gravitationally collapse into a black hole. The requirement that such collapses do not occur gives constraints on the DM mass and interaction strength. Such phenomenon crucially depends on the amount of DM that can accumulate in NS. In this talk, we re-evaluate in detail the maximum amount of DM that could be accumulated in NS by carefully considering the fact that neutrons form a highly degenerate fermi plasma. We find that for DM masses below 1 GeV constraints are significantly smaller than previously obtained in the literature.

Parallel Session Dark Matter, Astroparticle Physics

Primary author

Dr Raghuveer Garani (Universite Libre De Bruxelles)


Dr Yoann Genolini (Universite Libre De Bruxelles) Dr Thomas Hambye (Universite Libre De Bruxelles)

Presentation materials