Detailed Information on Publication Record
2020
Uhecr acceleration capabilities of the nearby supermassive black holes
TURSUNOV, Arman, Martin KOLOŠ and Zdeněk STUCHLÍKBasic 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
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
Slovakia
Confidentiality degree
není předmětem státního či obchodního tajemství
Publication form
electronic version available online
References:
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
Změněno: 20/4/2021 00:57, Mgr. Pavlína Jalůvková
Abstract
V originále
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.