1-5 July 2019
Faculty of Physics, University of Warsaw
Europe/Warsaw timezone

Primordial Kerr Black Holes

5 Jul 2019, 14:20
20m
Faculty of Physics, University of Warsaw

Faculty of Physics, University of Warsaw

conference hall 0.03, Faculty of Physics, University of Warsaw ul. Pasteura 5, 02-093 Warszawa Poland
contributed talk Beyond V

Speaker

Mr Jérémy Auffinger (Institut d'Astrophysique de Paris)

Description

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 to-be-published 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 give some tools that could be used to distinguish between Black Holes of primordial or stellar origin based on the Thorne limit on their spin.

Primary authors

Mr Jérémy Auffinger (Institut d'Astrophysique de Paris) Prof. Joseph Silk (Institut d'Astrophysique de Paris)

Presentation Materials