Speaker
M. Sten Delos
(Max Planck Institute for Astrophysics)
Description
Primordial black holes (PBHs) form from large-amplitude initial density fluctuations and may comprise some or all of the dark matter. If PBHs have a broadly extended mass spectrum, or in mixed PBH-particle dark matter scenarios, the extreme density fluctuations necessary to produce PBHs also lead to the formation of a much greater abundance of dark matter minihalos that could form even before the matter-dominated epoch. Their early formation would make the density inside these halos extraordinarily high, leaving them susceptible to detection by microlensing and other approaches.
Primary author
M. Sten Delos
(Max Planck Institute for Astrophysics)
