Femtolensing by dark matter revisited

@article{Katz2018FemtolensingBD,
  title={Femtolensing by dark matter revisited},
  author={Andrey Katz and Joachim Kopp and Sergey M. Sibiryakov and Wei Xue},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2018}
}
  • A. Katz, J. Kopp, W. Xue
  • Published 30 July 2018
  • Physics
  • Journal of Cosmology and Astroparticle Physics
Femtolensing of gamma ray bursts (GRBs) has been put forward as an exciting possibility to probe exotic astrophysical objects with masses below 10−13 solar masses such as small primordial black holes or ultra-compact dark matter minihalos, made up for instance of QCD axions. In this paper we critically review this idea, properly taking into account the extended nature of the source as well as wave optics effects. We demonstrate that most GRBs are inappropriate for femtolensing searches due to… 

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