KOLOŠ, Martin, Misbah SHAHZADI and Arman TURSUNOV. Charged particle dynamics in parabolic magnetosphere around Schwarzschild black hole. European Physical Journal C. New York (USA): SPRINGER, 2023, vol. 83, No 4, p. "323-1"-"323-23", 23 pp. ISSN 1434-6044. Available from: https://dx.doi.org/10.1140/epjc/s10052-023-11498-8.
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Basic information
Original name Charged particle dynamics in parabolic magnetosphere around Schwarzschild black hole
Authors KOLOŠ, Martin (203 Czech Republic, belonging to the institution), Misbah SHAHZADI and Arman TURSUNOV (860 Uzbekistan, belonging to the institution).
Edition European Physical Journal C, New York (USA), SPRINGER, 2023, 1434-6044.
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/47813059:19630/23:A0000261
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1140/epjc/s10052-023-11498-8
UT WoS 000976002400001
Keywords in English magnetic-field structure;event horizon; oscillation;extraction;energy
Tags RIV24, UF
Tags International impact, Reviewed
Links GA23-07043S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 14/2/2024 11:00.
Abstract
The study of charged particle dynamics in the combined gravitational and magnetic field can provide important theoretical insight into astrophysical processes around black holes. In this paper, we explore the charged particle dynamics in parabolic magnetic field configuration around Schwarzschild black hole, since the paraboloidal shapes of magnetic field lines around black holes are well motivated by the numerical simulations and supported by observations of relativistic jets. Analysing the stability of bounded orbits and using the effective potential approach, we show the possibility of existence of stable circular off-equatorial orbits around the symmetry axis. We also show the influence of radiation reaction force on the dynamics of charged particles, in particular on the chaoticity of the motion and Poincare sections, oscillatory frequencies, and emitted electromagnetic spectrum. Applied to Keplerian accretion disks, we show that in parabolic magnetic field configuration, the thin accretion configurations can be either destroyed or transformed into a thick toroidal structure given the radiation reaction and electromagnetic-disk interactions included. Calculating the Fourier spectra for radiating charged particle trajectories, we find that the radiation reaction force does not affect the main frequency peaks, however, it lowers the higher harmonics making the spectrum more flat and diluted in high frequency range.
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