Dynamics of magnetized particles around 4-D Einstein Gauss-Bonnet black hole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F20%3AA0000056" target="_blank" >RIV/47813059:19630/20:A0000056 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2212686420304283" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2212686420304283</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dark.2020.100715" target="_blank" >10.1016/j.dark.2020.100715</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamics of magnetized particles around 4-D Einstein Gauss-Bonnet black hole

Popis výsledku v původním jazyce

In this paper, we have investigated the dynamics of magnetized particles around 4-D Einstein Gauss-Bonnet black hole immersed in an external asymptotically uniform magnetic field. We have shown that the magnetic interaction parameter responsible for circular orbits decreases for negative values of the Gauss-Bonnet parameter alpha and the range where magnetized particle's stable circular orbits are allowed increases for the positive values of the parameter alpha. The study of the collisions of magnetized, charged and neutral particles has shown that the center-of-mass energy of the particles increases in the presence of positive Gauss-Bonnet parameter. Finally, we show how the magnetic interaction and Gauss-Bonnet parameter may mimic the effect of rotation of the Kerr black hole giving the same ISCO radius for magnetized particles. Detailed analysis of the ISCO show that spin of Kerr black hole cannot be mimicked by the effects of magnetic interaction and the Gauss-Bonnet parameters when alpha &lt; -4.37 and the spin parameter a &gt; 0.237. (c) 2020 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Dynamics of magnetized particles around 4-D Einstein Gauss-Bonnet black hole

Popis výsledku anglicky

In this paper, we have investigated the dynamics of magnetized particles around 4-D Einstein Gauss-Bonnet black hole immersed in an external asymptotically uniform magnetic field. We have shown that the magnetic interaction parameter responsible for circular orbits decreases for negative values of the Gauss-Bonnet parameter alpha and the range where magnetized particle's stable circular orbits are allowed increases for the positive values of the parameter alpha. The study of the collisions of magnetized, charged and neutral particles has shown that the center-of-mass energy of the particles increases in the presence of positive Gauss-Bonnet parameter. Finally, we show how the magnetic interaction and Gauss-Bonnet parameter may mimic the effect of rotation of the Kerr black hole giving the same ISCO radius for magnetized particles. Detailed analysis of the ISCO show that spin of Kerr black hole cannot be mimicked by the effects of magnetic interaction and the Gauss-Bonnet parameters when alpha &lt; -4.37 and the spin parameter a &gt; 0.237. (c) 2020 Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Physics of the Dark Universe

ISSN

2212-6864

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

„100715-1“-„100715-11“

Kód UT WoS článku

000595916100036

EID výsledku v databázi Scopus

2-s2.0-85090119258