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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Nonlinear magnetically charged black holes with phantom global monopoles: thermodynamics, geodesics, quasinormal modes, and grey-body factors
Original language description
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'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 & 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.
Czech name
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Czech description
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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
10303 - Particles and field physics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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