New cosmological constraints on primordial black holes

  title={New cosmological constraints on primordial black holes},
  author={Bernard J. Carr and Kazunori Kohri and Yuuiti Sendouda and Jun’ichi Yokoyama},
  journal={Physical Review D},
We update the constraints on the fraction of the Universe going into primordial black holes in the mass range 10{sup 9}-10{sup 17} g associated with the effects of their evaporations on big bang nucleosynthesis and the extragalactic photon background. We include for the first time all the effects of quark and gluon emission by black holes on these constraints and account for the latest observational developments. We then discuss the other constraints in this mass range and show that these are… Expand
Constraints on the curvature power spectrum from primordial black hole evaporation
  • I. Dalianis
  • Physics
  • Journal of Cosmology and Astroparticle Physics
  • 2019
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