Formation of black holes through BSW effect and black hole-black hole collisions

Abstract

We study mechanism of formation of black holes (BHs) from collisions of particles in the vicinity of the supermassive black hole acting as a particle accelerator trough BSW (Banados-Silk-West) effect. Moreover, we also investigate BH-BH collision, in which stellar black holes colliding near the horizon of a rotating supermassive black hole can reach large values of the center-of-mass energy. This result implies that high arbitrary energy of collisions causes to be transformed into radiation energy and particles, which might bring possible visible signals through the astrophysical observations. We study the radiation energy from a collision of two accelerating stellar black holes and find a maximal value of the radiation energy to be nearly Erad≈2.5{dot operator}1056 erg for the ultrarelativistic value of v/c=0.99 from BH-BH collisions. © 2013 Springer Science+Business Media Dordrecht.