TURSUNOV, Arman, Bakhtinur JURAEV, Zdeněk STUCHLÍK and Martin KOLOŠ. Electric Penrose process: High-energy acceleration of ionized particles by nonrotating weakly charged black hole. Physical Review D. College Park (USA): American Physical Society, 2021, vol. 104, No 8, p. "084099-1"-"084099-9", 9 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.104.084099.
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Basic information
Original name Electric Penrose process: High-energy acceleration of ionized particles by nonrotating weakly charged black hole
Authors TURSUNOV, Arman (860 Uzbekistan, belonging to the institution), Bakhtinur JURAEV (860 Uzbekistan, belonging to the institution), Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution) and Martin KOLOŠ (203 Czech Republic, belonging to the institution).
Edition Physical Review D, College Park (USA), American Physical Society, 2021, 2470-0010.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/21:A0000108
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.104.084099
UT WoS 000712574800021
Keywords in English EXTRACTION;ENERGETICS
Tags 2022, FÚ, GA19-03950S, RIV22
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 15/3/2022 12:55.
Abstract
In many astrophysical scenarios the charge of the black hole is often neglected due to unrealistically large values of the charge required for the Reissner-Nordstrom spacetime metric. However, black holes may possess small electric charge due to various selective accretion mechanisms. In this paper we investigate the effect of a small hypothetical electric charge of a Schwarzschild black hole on the ionization of a freely falling neutral particle and subsequent escape of the ionized particle from the black hole. We show that the energy of ionized particle can grow ultrahigh and discuss distinguishing signatures of particle acceleration by weakly charged black holes. We also discuss a possible application of the proposed mechanism as an alternative cosmic ray acceleration scenario. In particular we show that the Galactic center supermassive black hole is capable to act as a PeVatron of protons. The presented mechanism can serve as a simple toy model of a nonrotating compact object acting as a particle accelerator with a potential astrophysical implementations related to the cosmic ray physics and beyond.
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