PRIMORDIAL BLACK HOLES, HAWKING RADIATION AND THE EARLY UNIVERSE

@article{Frampton2005PRIMORDIALBH,
  title={PRIMORDIAL BLACK HOLES, HAWKING RADIATION AND THE EARLY UNIVERSE},
  author={P. Frampton and T. Kephart},
  journal={Modern Physics Letters A},
  year={2005},
  volume={20},
  pages={1573-1576}
}
  • P. Frampton, T. Kephart
  • Published 2005
  • Physics
  • Modern Physics Letters A
  • The 511 keV gamma emission from the galactic core may originate from a high concentration (~ 1022) of primordial black holes (PBHs) in the core, each of whose Hawking radiation includes ~ 1021 positrons per second. The PBHs we consider are taken as near the lightest with longevity greater than the age of the universe (mass ~ 1012kg; Schwarzschild radius ~ 1 fm). These PBHs contribute only a small fraction of cold dark matter, ΩPBH ~ 10-8. This speculative hypothesis, if confirmed implies the… CONTINUE READING