July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

Primordial Kerr Black Holes

Jul 30, 2020, 9:55 AM
virtual conference

virtual conference

Talk 08. Astro-particle Physics and Cosmology Astro-particle Physics and Cosmology


Alexandre Arbey (Lyon U. & CERN TH)


Primordial Black Holes (PBHs) are appealing candidates for dark matter in the universe but are severely constrained by theoretical and observational constraints. I will focus on the Hawking evaporation limits extended to Kerr Black Holes. These results have been obtained with a new code entitled BlackHawk that I will briefly present. In particular, I will review the isotropic extragalactic gamma ray background constraint and show that the "window" in which PBHs can constitute all of the dark matter depends strongly on the PBH spin. Finally, I will present a way to distinguish between Black Holes of primordial and of stellar origins based on the Thorne limit on their spin.

Secondary track (number) 09

Primary author

Alexandre Arbey (Lyon U. & CERN TH)

Presentation materials