Ionized Keplerian Disks Demonstrating Interplay Between Strong Gravity and Magnetism
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F25%3AA0000422" target="_blank" >RIV/47813059:19630/25:A0000422 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1099-4300/27/12/1253" target="_blank" >https://www.mdpi.com/1099-4300/27/12/1253</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/e27121253" target="_blank" >10.3390/e27121253</a>
Alternative languages
Result language
angličtina
Original language name
Ionized Keplerian Disks Demonstrating Interplay Between Strong Gravity and Magnetism
Original language description
Using the dynamics of charged test particles, we study the interplay of extremely strong gravitational and magnetic fields acting on ionized Keplerian disks. We assume a Schwarzschild spacetime of mass M combined with a dipole magnetic field represented by a dimensionless parameter b, characterizing the influence of fields near the gravitational radius (Formula presented.). The particle dynamics can be realized in three regimes: gravitational ((Formula presented.)), magnetic ((Formula presented.)), and chaotic ((Formula presented.)). We demonstrate the ionization of disks that are originally both orthogonal and inclined to the magnetic field axis and consider both magnetic attraction and magnetic repulsion acting on the ionized particles. The case of secondary ionized equatorial charged disks is also discussed. The ionization in the dipole magnetic field is compared with the case of a Schwarzschild spacetime endowed with an asymptotically uniform magnetic field. The differences in the dipole and uniform fields are significant in the magnetic and chaotic regimes, while they are suppressed in the gravitational regime.
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
Entropy
ISSN
1099-4300
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
35
Pages from-to
„1253-1“-„1253-35“
UT code for WoS article
001646379800001
EID of the result in the Scopus database
2-s2.0-105025913948