New cosmological constraints on primordial black holes
University of Toronto · Canadian Institute for Theoretical Astrophysics · +7 more institutions
Abstract
We update the constraints on the fraction of the Universe going into primordial black holes in the mass range ${10}^{9}--{10}^{17}\text{ }\text{ }\mathrm{g}$ 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 weaker than the nucleosynthesis and photon background limits, apart from a small range ${10}^{13}--{10}^{14}\text{ }\text{ }\mathrm{g}$, where the damping of cosmic microwave background…
Citation impact
- FWCI
- 24.16
- Percentile
- 100%
- References
- 326
Authors
4- BJB. J. CarrCorresponding
University of Toronto, Canadian Institute for Theoretical Astrophysics, Queen Mary University of London, The University of Tokyo
- KKKazunori Kohri
Lancaster University, Tohoku University, Center for Astrophysics Harvard & Smithsonian
- YSYuuiti Sendouda
The University of Tokyo, Kyoto University
- JYJunichi Yokoyama
The University of Tokyo, Kavli Institute for the Physics and Mathematics of the Universe
Topics & keywords
- Primordial black hole
- Astrophysics
- Physics
- Theoretical physics
- Astronomy
- Gravitational wave
- Binary black hole