3 citations · 3 across the 5 of their papers we have counts for
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Improved analysis of time delays between radio wavelengths and X-ray of Sgr A* flares in the shock oscillation model
Ramiz Aktar, Toru Okuda, Chandra B. Singh
We present an improved analysis of the time delays between radio and X-ray flares from the supermassive black hole Sagittarius A* (Sgr A*), extending our previous shock oscillation…
Three-dimensional Global Relativistic Radiation Magnetohydrodynamics of Magnetically Arrested Disk Accretion Flows in AGNs
Ramiz Aktar, Kuo-Chuan Pan, Toru Okuda
We perform three-dimensional radiation-relativistic magnetohydrodynamic (3D Rad-RMHD) simulations of accretion flows around spinning active galactic nuclei (AGNs). Our study focuse…
Global resistive MHD accretion flows around spinning AGNs: impact of resistivity on MAD state
Ramiz Aktar, Kuo-Chuan Pan, Toru Okuda
In this study, we investigate the effect of resistivity on the dynamics of global magnetohydrodynamic accretion flows (Res-MHD) around a spinning supermassive black hole. We perfor…
Numerical studies of (in)stabilities of shocks in perturbed advective flows around black holes
Junxing Zhou, Junxiang Huang, Xin Chang +2
Using two-dimensional hydrodynamic simulations, we investigate the stability of shocked accretion flows around black holes under non-axisymmetric perturbations. By systematically e…
Radiation RMHD accretion flows around spinning AGNs: a comparative study of MAD and SANE state
Ramiz Aktar, Kuo-Chuan Pan, Toru Okuda
In our study, we examine a 2D radiation, relativistic, magnetohydrodynamics (Rad-RMHD) accretion flows around a spinning supermassive black hole. We begin by setting an initial equ…
Evolution of MHD Torus and Mass Outflow Around Spinning AGN
Ramiz Aktar, Kuo-Chuan Pan, Toru Okuda
We perform axisymmetric, two-dimensional magnetohydrodynamic (MHD) simulations to investigate accretion flows around spinning AGN. To mimic the space-time geometry of spinning blac…