Collisions and circular motion of spinning magnetized particles orbiting magnetized Kerr black holes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F25%3AA0000475" target="_blank" >RIV/47813059:19630/25:A0000475 - isvavai.cz</a>
Result on the web
<a href="https://harvest.aps.org/v2/journals/articles/10.1103/bl45-hbjm/fulltext?utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://harvest.aps.org/v2/journals/articles/10.1103/bl45-hbjm/fulltext?utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/bl45-hbjm" target="_blank" >10.1103/bl45-hbjm</a>
Alternative languages
Result language
angličtina
Original language name
Collisions and circular motion of spinning magnetized particles orbiting magnetized Kerr black holes
Original language description
Studying spinning magnetized particles in strong gravitational and electromagnetic fields is crucial for understanding astrophysical processes near black holes, particularly in the scenarios of millisecond pulsars orbiting supermassive or intermediate-mass black holes. In this work, we analyze the circular motion and collisions of such particles in the close environment of a magnetized Kerr black hole, considering both spincurvature and magnetic dipole interactions. Using the Mathisson-Papapetrou-Dixon (MPD) equations, we derive the effective potential governing the circular motion of spinning magnetized particles and investigate the innermost stable circular orbit (ISCO) under the influence of black hole spin, external magnetic fields, and intrinsic particle spin and magnetic dipole moment. The results reveal how the interaction of the magnetic dipole moment with the external field and spin-curvature interactions significantly alter stable orbits, leading to modifications in accretion dynamics. Furthermore, we explore the center-of-mass energy of such high-energy particle collisions, demonstrating that spin and magnetic interactions can amplify collision energies beyond the standard Ba & ntilde;ados-Silk-West (BSW) process, with implications for the production of ultrahigh-energy cosmic rays and the formation of jets in active galactic nuclei and lowluminosity galaxies. Our findings may provide theoretical predictions that can be tested using observations of compact objects in strong magnetic fields, such as pulsars near supermassive black holes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
112
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
„044068-1“-„044068-19“
UT code for WoS article
001562704100007
EID of the result in the Scopus database
2-s2.0-105021596120