Particle dynamics and quasi-periodic oscillations in the Dyonic ModMax: Constraint using quasars data

Abstract

In this work, we have worked out dynamical aspects for the particles moving in the Dyonic Mod Max spacetime. We have calculated the innermost stable circular orbit (ISCO) around black hole in Dyonic Mod Max and explored its implications for different microquasars. Considering the Dyonic Mod Max black hole as a microquasar source, we have studied quasi-periodic oscillation (QPO) around such a black hole. Finally, we determine constraint values for the parameters Q and gamma in the Dyonic ModMax spacetime by analyzing QPOs observed from the quasars GRO J1655-40, XTE J1550-564, XTE J1859 + 226, GRS 1915 + 105, and H1743-322. We use the Monte Carlo Markov Chain (MCMC) method to analyze the observational data, which helps us refine these parameters and better understand the behavior of black holes in the Dyonic ModMax model.