Planck star phenomenology

A. Barrau (1) , Carlo Rovelli (2, 3)

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 CPT - Centre de Physique Théorique - UMR 7332
3 CPT - E4 Gravité quantique

It is possible that black holes hide a core of Planckian density, sustained by quantum-gravitational pressure. As a black hole evaporates, the core remembers the initial mass and the final explosion occurs at macroscopic scale. We investigate possible phenomenological consequences of this idea. Under several rough assumptions, we estimate that up to several short gamma-ray bursts per day, around 10 MeV, with isotropic distribution, can be expected coming from a region of a few hundred light years around us. (C) 2014 The Authors. Published by Elsevier B.V.

Mots clés: RAYS; PRIMORDIAL BLACK-HOLES

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]; Physique des Hautes Energies - Phénoménologie [hep-ph]; Physique des Hautes Energies - Théorie [hep-th]; Cosmologie et astrophysique extra-galactique [astro-ph.CO]

A. Barrau, Carlo Rovelli. Planck star phenomenology. Physics Letters B, 2014, 739, pp.405-409 ⟨10.1016/j.physletb.2014.11.020⟩. ⟨hal-01239330⟩