Constraining Kiselev black hole parameters in f(R,T) gravity from intermediate mass black hole QPO observation using Bayesian MCMC simulation
Abubakir Shermatov
1,*
,
Bahodir Ahmedov
2
1 Institute of Fundamental and Applied Research, National Research University TIIAME , Kori Niyoziy 39, Tashkent 100000, Uzbekistan
2 New Uzbekistan University , Movarounnahr Street 1, Tashkent 100000, Uzbekistan
Abstract
We investigate a static Kiselev black hole solution in f(R,T) gravity. We then study equatorial motion of test particles by incorporating the matter-geometry coupling through the non-geodesic equation, which modifies the effective potential via a weak-coupling parameter \(\alpha\). The Keplerian and epicyclic frequencies are derived and employed to model twin-peak QPOs. Finally, using \(\chi^2\) minimization and Bayesian MCMC sampling with Gaussian priors, we constrain the model parameters with QPO data for intermediate mass black hole M82 X-1.
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Shermatov, A. and Ahmedov, B., Constraining Kiselev black hole parameters in f(R,T) gravity from intermediate mass black hole QPO observation using Bayesian MCMC simulation, Turanian J. Vol. 2, No. 1 (020101), 2026