Gravitational microlensing constraints on primordial black holes by Euclid
Lindita Hamolli,
Mimoza Hafizi,
Francesco De Paolis
et al.
Abstract:Primordial black holes (PBHs) may form in the early stages of the Universe via the collapse of large density perturbations. Depending on the formation mechanism, PBHs may exist and populate today the galactic halos and have masses in a wide range, from about 10 −14 M ⊙ up to thousands, or more, of solar masses.Gravitational microlensing is the most robust and powerful method to constrain primordial black holes (PBHs), since it does not require that the lensing objects be directly visible. We calculate the opti… Show more
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