We perform general-relativistic magnetohydrodynamic (GRMHD) simulations around the Kerr black hole. The goal is to understand the physics around them and extract physical information from astrophysical observations. Consequently, our modeling is targeted to bridge the astrophysical theories and observations. In this talk, I will present recent results from our simulations in the context of BH-XRBs and AGNs. Simplified assumptions in the thermodynamics of the electrons limit the potential and relevance of GRMHD simulations in the broader range of astrophysical applications. Keeping that in mind, we developed a self-consistent formalism for electron thermodynamics in GRMHD by incorporating heating, radiative cooling, and coupling between electrons and protons. In the talk, I will explain the properties of the accretion flow around black holes in the single-temperature and two-temperature paradigms. I will also explain the formation of relativistic jets and disc-wind driven by the Blandford & Znajek and Blandford & Payne mechanisms from the thin accretion disc.
Zoom link: https://icts-res-in.zoom.us/j/83408416881?pwd=S1FpSFJSSy9lR3V1dUJ2OWlOM3VUUT09
Meeting ID: 834 0841 6881
Passcode: 242422