Ionized Keplerian Disks Demonstrating Interplay Between Strong Gravity and Magnetism

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Ionized Keplerian Disks Demonstrating Interplay Between Strong Gravity and Magnetism

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Ionized Keplerian Disks Demonstrating Interplay Between Strong Gravity and Magnetism

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Entropy

ISSN

1099-4300

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

35

Strana od-do

„1253-1“-„1253-35“

Kód UT WoS článku

001646379800001

EID výsledku v databázi Scopus

2-s2.0-105025913948