Circular motion and collisions of charged spinning particles near Kerr Newman black holes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F24%3AA0000350" target="_blank" >RIV/47813059:19630/24:A0000350 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2212686424001729?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2212686424001729?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dark.2024.101590" target="_blank" >10.1016/j.dark.2024.101590</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Circular motion and collisions of charged spinning particles near Kerr Newman black holes

Popis výsledku v původním jazyce

We investigate the dynamics of spinning particles with an electric charge orbiting electrically charged Kerr-Newman black holes. First, we derive the equations of motion for the test particles using the MathissonPapapetrou-Dixon (MPD) equations, taking into account electromagnetic interaction and the interaction between the particle spin and the spacetime curvature known as the Lorentz coupling term in the MPD equation. We analyze the related effective potential in various scenarios of particle spin, angular momentum, and black hole spin orientation. In addition, we provide graphical analyses of the radius of innermost stable circular orbits (ISCOs) of the particles, their angular momentum, and energy at ISCOs and superluminal bounds. The ISCOs for positive and negatively charged particles are almost the same. The combined effects of the black hole and particle spins enhance the Coulomb interaction effect on the ISCO radius. The ISCO energy and angular momentum decrease with the increase in particle spin. In the Reissner-Nordstr &amp; ouml;m (RN) black hole limit, the decreasing rate is faster at positive values of the particle spin, and the spin limit changes in the Kerr-Newman black hole case. Finally, we study collisions between spinning charged particles near Kerr- Newman black holes. The critical values of the angular momentum of spinning charged particles are explored, and the particles can collide in various cases of particle and black hole spin, as well as the particle angular momentum. We also analyze electromagnetic and spin effects on the center-of-mass energy of the colliding particles.

Název v anglickém jazyce

Circular motion and collisions of charged spinning particles near Kerr Newman black holes

Popis výsledku anglicky

We investigate the dynamics of spinning particles with an electric charge orbiting electrically charged Kerr-Newman black holes. First, we derive the equations of motion for the test particles using the MathissonPapapetrou-Dixon (MPD) equations, taking into account electromagnetic interaction and the interaction between the particle spin and the spacetime curvature known as the Lorentz coupling term in the MPD equation. We analyze the related effective potential in various scenarios of particle spin, angular momentum, and black hole spin orientation. In addition, we provide graphical analyses of the radius of innermost stable circular orbits (ISCOs) of the particles, their angular momentum, and energy at ISCOs and superluminal bounds. The ISCOs for positive and negatively charged particles are almost the same. The combined effects of the black hole and particle spins enhance the Coulomb interaction effect on the ISCO radius. The ISCO energy and angular momentum decrease with the increase in particle spin. In the Reissner-Nordstr &amp; ouml;m (RN) black hole limit, the decreasing rate is faster at positive values of the particle spin, and the spin limit changes in the Kerr-Newman black hole case. Finally, we study collisions between spinning charged particles near Kerr- Newman black holes. The critical values of the angular momentum of spinning charged particles are explored, and the particles can collide in various cases of particle and black hole spin, as well as the particle angular momentum. We also analyze electromagnetic and spin effects on the center-of-mass energy of the colliding particles.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GA23-07043S" target="_blank" >GA23-07043S: Magnetosféra černých děr</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

46

Číslo periodika v rámci svazku

December 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

„101590-1“-„101590-11“

Kód UT WoS článku

001284466600001

EID výsledku v databázi Scopus

2-s2.0-85199787392