Super-Penrose Process for Nonextremal Black Holes

2021/06/01 by O. B. Zaslavskii · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Pulsars and Gravitational Waves Research

paper · doi:10.1134/s0021364021120043

Abstract

We consider particle collisions in the background of nonextremal spherically symmetric static black holes. It is shown that debris of collision can have indefinitely large energy at infinity; i.e., the super-Penrose process can occur. This property is sharply contrasted with that of rotating black holes for which it is already established that the super-Penrose process is forbidden. The Reissner–Nordström black hole serves as an example. If an external central force exerts on particles, even the Schwarzschild background is suitable for the super-Penrose process.

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• Penrose and super-Penrose energy extraction from a Reissner-Nordström black hole spacetime with a cosmological constant through the Bañados-Silk-West mechanism

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