Quasinormal modes and greybody bounds of black holes endowed with modified Chaplygin gas
Sekhmani Y. Gogoi D.J. Maurya S.K. Boshkayev K. Jasim M.K.
March 2025Elsevier B.V.
Journal of High Energy Astrophysics
2025#45200 - 213 pp.
This paper investigates the quasinormal modes and greybody factors of black holes with modified Chaplygin gas. Applying the WKB approximation method, we analyze the impact of model parameters A, β, B, and γ on the oscillation frequency and damping rate of gravitational waves. Parameters A and β initially decrease these measures before a gradual increase, while B significantly influences them with a distinct critical point behaviour, and γ causes a gradual increase. Additionally, we explore greybody factor bounds analytically, revealing that smaller multipole moments l yield higher bounds, increasing A decreases bounds slowly, B significantly increases them, β decreases them, and γ has a minimal impact. These findings enhance our insight of the dynamics of black holes with modified Chaplygin gas, particularly their quasinormal modes and greybody factors.
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Center for Theoretical Physics, Khazar University, 41 Mehseti Street, Baku, AZ1096, Azerbaijan
Centre for Research Impact & Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, Rajpura, 140401, India
Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh, Baddi, 174103, India
Department of Physics, Moran College, Charaideo, Assam, Moranhat, 785670, India
Theoretical Physics Division, Centre for Atmospheric Studies, Dibrugarh University, Assam, Dibrugarh, 786004, India
Department of Mathematical and Physical Sciences, College of Arts and Sciences, University of Nizwa, Nizwa, 616, Oman
Research Center of Astrophysics and Cosmology, Khazar University, 41 Mehseti Street, Baku, AZ1096, Azerbaijan
Al-Farabi Kazakh National University, Al-Farabi av. 71, Almaty, 050040, Kazakhstan
Institute of Nuclear Physics, Ibragimova, 1, Almaty, 050032, Kazakhstan
Kazakh-British Technical University, Tole bi str., 59, Almaty, 050000, Kazakhstan
Center for Theoretical Physics
Centre for Research Impact & Outcome
Chitkara Centre for Research and Development
Department of Physics
Theoretical Physics Division
Department of Mathematical and Physical Sciences
Research Center of Astrophysics and Cosmology
Al-Farabi Kazakh National University
Institute of Nuclear Physics
Kazakh-British Technical University
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