Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing

  title={Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing},
  author={Evencio Mediavilla and J. Jim'enez-Vicente and Jose A. Mu{\~n}oz and H{\'e}ctor Vives-Arias and Jos'e Calder'on-Infante},
  journal={The Astrophysical Journal},
The idea that dark matter can be made of intermediate-mass primordial black holes (PBHs) in the 10 M ⊙ M 200 M ⊙ range has recently been reconsidered, particularly in the light of the detection of gravitational waves by the LIGO experiment. The existence of even a small fraction of dark matter in black holes should nevertheless result in noticeable quasar gravitational microlensing. Quasar microlensing is sensitive to any type of compact objects in the lens galaxy, to their abundance, and to… 

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