TURSUNOV, Arman, Martin KOLOŠ and Zdeněk STUCHLÍK. Uhecr acceleration capabilities of the nearby supermassive black holes. Online. In Dzubinska A.,Reiffers M. 20th Conference of Czech and Slovak Physicists, Proceedings. Košice, Slovensko: Slovak Physical Society, Czech Physical Society, 2020, p. 181-185. ISBN 978-80-89855-13-1.
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Basic information
Original name Uhecr acceleration capabilities of the nearby supermassive black holes
Authors TURSUNOV, Arman (860 Uzbekistan, belonging to the institution), Martin KOLOŠ (203 Czech Republic, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution).
Edition Košice, Slovensko, 20th Conference of Czech and Slovak Physicists, Proceedings, p. 181-185, 5 pp. 2020.
Publisher Slovak Physical Society, Czech Physical Society
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher Slovakia
Confidentiality degree is not subject to a state or trade secret
Publication form electronic version available online
WWW URL
RIV identification code RIV/47813059:19630/20:A0000098
Organization unit Institute of physics in Opava
ISBN 978-80-89855-13-1
Keywords in English supermassive black hoel;ultra-high-energycosmicray
Tags FÚ, FÚ2020, RIV21, sbornik
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 20/4/2021 00:57.
Abstract
The origin and acceleration mechanism of ultra-high-energy cosmic rays (UHECRs) with energy exceeding the GZK-cutoff remain unknown. It is often speculated that supermassive black holes (SMBHs) located at the centers of many galaxies can serve as possible sources of UHECRs. This is also supported by recent detections of high-energy neutrinos from blazar, as neutrinos are the tracers of UHECRs. In this contribution we explore the capabilities of some SMBHs to accelerate UHECR protons of certain energies by the induced electric field generated due to frame-dragging effect of twisting of magnetic field lines near horizon of rotating SMBHs. In particular, we study the ionization of freely-falling neutral particles, such as the hydrogen ionization or neutron beta-decay in the vicinity of SMBHs immersed into external magnetic field and calculate the energies of escaping protons after the ionization. We choose 25 nearby SMBH candidates (within 100 Mpc) with measured and estimated masses, spins and magnetic fields, for which we present a table with mean proton energy and explore their acceleration capabilities.
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