Quasinormal modes and topological characteristics of a Schwarzschild black hole surrounded by the Dehnen type dark matter halo

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F25%3A50022545" target="_blank" >RIV/62690094:18470/25:50022545 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1140/epjc/s10052-025-14549-4" target="_blank" >https://link.springer.com/article/10.1140/epjc/s10052-025-14549-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-025-14549-4" target="_blank" >10.1140/epjc/s10052-025-14549-4</a>

Result language
angličtina
Original language name
Quasinormal modes and topological characteristics of a Schwarzschild black hole surrounded by the Dehnen type dark matter halo
Original language description
In this study, we investigate a Schwarzschild black hole surrounded by Dehnen-type dark matter. A comprehensive thermodynamic analysis of black holes is conducted, leading to the calculation of black hole remnants. We investigate the trajectory of light, establishing an upper limit for the parameters based on Event Horizon Telescope (EHT) observations of Sgr A*, ensuring that the black hole's shadow resides within the allowed region. Furthermore, we derive the quasinormal modes (QNMs) for both scalar and electromagnetic perturbations. Utilizing a topological framework, we examine the stability of the photon sphere and classify the topology of the black hole in accordance with its thermodynamic potentials.
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
10308 - Astronomy (including astrophysics,space science)

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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