Nonlinear magnetically charged black holes with phantom global monopoles: thermodynamics, geodesics, quasinormal modes, and grey-body factors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F25%3A50022989" target="_blank" >RIV/62690094:18470/25:50022989 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10714-025-03478-y" target="_blank" >https://link.springer.com/article/10.1007/s10714-025-03478-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10714-025-03478-y" target="_blank" >10.1007/s10714-025-03478-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nonlinear magnetically charged black holes with phantom global monopoles: thermodynamics, geodesics, quasinormal modes, and grey-body factors

Popis výsledku v původním jazyce

We study the properties of a nonlinear magnetic-charged black hole in the presence of a phantom global monopole. By incorporating nonlinear electrodynamics (NLE) and exotic scalar fields, we derive an exact black hole solution and analyze its geometric structure, causal properties, and thermodynamic behavior. We examine how the presence of a phantom global monopole modifies the black hole&apos;s Hawking temperature, entropy, and stability conditions, revealing significant changes in its phase structure. Additionally, we investigate the geodesic motion of test particles. The quasinormal mode (QNM) spectrum is computed using the WKB approximation and P &amp; ouml;schl-Teller potential method, providing insights into the perturbative stability of the system. Furthermore, we analyze the grey-body factors that characterize radiation emission, highlighting their dependence on black hole parameters. Our findings indicate that the interplay between phantom energy, NLE, and global monopoles introduces observable deviations in strong-field astrophysical phenomena. These results offer potential signatures for testing modified gravity theories and contribute to a deeper understanding of black hole physics in exotic field environments.

Název v anglickém jazyce

Nonlinear magnetically charged black holes with phantom global monopoles: thermodynamics, geodesics, quasinormal modes, and grey-body factors

Popis výsledku anglicky

We study the properties of a nonlinear magnetic-charged black hole in the presence of a phantom global monopole. By incorporating nonlinear electrodynamics (NLE) and exotic scalar fields, we derive an exact black hole solution and analyze its geometric structure, causal properties, and thermodynamic behavior. We examine how the presence of a phantom global monopole modifies the black hole&apos;s Hawking temperature, entropy, and stability conditions, revealing significant changes in its phase structure. Additionally, we investigate the geodesic motion of test particles. The quasinormal mode (QNM) spectrum is computed using the WKB approximation and P &amp; ouml;schl-Teller potential method, providing insights into the perturbative stability of the system. Furthermore, we analyze the grey-body factors that characterize radiation emission, highlighting their dependence on black hole parameters. Our findings indicate that the interplay between phantom energy, NLE, and global monopoles introduces observable deviations in strong-field astrophysical phenomena. These results offer potential signatures for testing modified gravity theories and contribute to a deeper understanding of black hole physics in exotic field environments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

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

General Relativity and Gravitation

ISSN

0001-7701

e-ISSN

1572-9532

Svazek periodika

57

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

34

Strana od-do

"Article number: 140"

Kód UT WoS článku

001590747500001

EID výsledku v databázi Scopus

2-s2.0-105018694632