Constraints on primordial black hole dark matter from Galactic center X-ray observations

  title={Constraints on primordial black hole dark matter from Galactic center X-ray observations},
  author={Andi Hektor and Gert Hutsi and Martti Raidal},
  journal={Astronomy \& Astrophysics},
Context. Surprisingly high masses of the black holes inferred from the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo gravitational wave measurements have lead to speculations that the observed mergers might be due to 𝒪(10) M⊙ primordial black holes (PBHs). Furthermore, it has been suggested that the whole amount of dark matter (DM) might be in that exotic form. Aims. We investigate constraints on the PBH DM using NuSTAR Galactic center (GC) X-ray data. Methods. We used a… 

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