PBH formation from spherically symmetric hydrodynamical perturbations: a review

  title={PBH formation from spherically symmetric hydrodynamical perturbations: a review},
  author={Alberto Escriv{\'a}},
Primordial black holes, which could have been formed in the very early Universe due to the collapse of large curvature fluctuations, are nowadays one of the most attractive and fascinating research areas in cosmology for their possible theoretical and observational implications. This review article presents the current results and developments on the conditions for primordial black hole formation from the collapse of curvature fluctuations in spherical symmetry on a Friedman-Lemaître-Robertson… 
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