Dark Matters 2022

Session

Dark astro

30 Nov 2022, 14:00

Salle Solvay (NO Buidling, 5th floor) (ULB, Campus de la Plaine)

8. Constraints on Primordial Black Holes

Pasquale Serpico (LAPTh - CNRS & Univ. Savoie (FR))

30/11/2022, 14:00

9. Cosmic radiation backgrounds from primordial black holes

Francesco Ziparo

30/11/2022, 14:40

Recent measurements of the cosmic X-ray and radio backgrounds (CXB and CRB) unveil an excess of radiation with respect to what is expected from known sources, suggesting the presence of an elusive population of still undiscovered emitters. We investigate the hypothesis that the CXB and CRB excesses are due to primordial black holes (PBHs) which may constitute an arbitrary fraction of dark...

2. Observing dark matter clumps and asteroid-mass primordial black holes in the solar system with gravimeters and GNSS networks

Miguel Cuadrat-Grzybowski

30/11/2022, 14:55

10. Dark Matter in the form of Compact Objects

Chris Kouvaris

30/11/2022, 15:10

I will entertain the possibility that part of dark matter is in the form of primordial black holes formed in a matter dominated phase of the Universe. I will also address the possibility that strongly interacting dark matter might form its own compact objects.

11. Thermalization of dark matter in neutron stars

Dr Raghuveer Garani Ramesh (INFN, Florence)

30/11/2022, 16:20

A promising probe to unmask particle dark matter is to observe its effect on neutron stars,
the prospects of which depend critically on whether captured dark matter thermalizes in a timely
manner with the stellar core via repeated scattering with the Fermi-degenerate medium. In this
talk I will estimate the timescales for thermalization for multiple scenarios. These include: (a) spin-0
and...