Shadows and quasinormal modes of black holes in the Einstein-SUðNÞ nonlinear sigma model
Al-Badawi A. Sekhmani Y. Rayimbaev J. Myrzakulov R.
1 September 2024World Scientific
International Journal of Modern Physics D
2024#33Issue 12
This research surveys the impact of the °avor number parameter on a four-dimensional Black Hole (BH) solution in Einsteins nonlinear sigma model-SUðNÞ (NLSM) in accordance with the shadow, energy emission rate, sparsity, massless scalar, and electromagnetic quasinormal mode spectra. Related investigations are being carried out to explore the in°uence of the °avor number parameter. In particular, the ¯ndings show that shadow behavior and energy emission rate are antinomic processes in view of the °avor number parameter. On the other hand, the SUðNÞ-NLSM BHs quasinormal modes are computed by ¯rst calculating the e®ective potential generated by the perturbation of scalar and electromagnetic ¯elds, followed by a numerical analysis based on the sixth-order WKB approach. Our results show that the QNMs of the SUðNÞ-NLSM BH damp more slowly as °avor number N increases.
photon sphere , quasinormal modes , shadows , SU(N)-NLSM theory
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Department of Physics, Al-Hussein Bin Talal University, P.O. Box: 20, Maan, 71111, Jordan
Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics, Astana, 010009, Kazakhstan
Department of General and Theoretical Physics L. N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
New Uzbekistan University, Movarounnahr Street 1, Tashkent, 100007, Uzbekistan
University of Tashkent for Applied Sciences, Gavhar Street 1, Tashkent, 100149, Uzbekistan
Institute of Fundamental and Applied Research, National Research University TIIAME, Kori Niyoziy 39, Tashkent, 100000, Uzbekistan
Department of Physics
Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics
Department of General and Theoretical Physics L. N. Gumilyov Eurasian National University
New Uzbekistan University
University of Tashkent for Applied Sciences
Institute of Fundamental and Applied Research
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