456 citations · 8.7k across the 154 of their papers we have counts for
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Hydrodynamic Simulations of Oscillating Shock Waves in a Sub-Keplerian Accretion Flow Around Black Holes
Kinsuk Giri, Sandip K. Chakrabarti, Madan M. Samanta +1
We study the accretion processes on a black hole by numerical simulation. We use a grid based finite difference code for this purpose. We scan the parameter space spanned by the sp…
Intergalactic Magnetic Field and Arrival Direction of Ultra-High-Energy Protons
Dongsu Ryu, Santabrata Das, Hyesung Kang
We studied how the intergalactic magnetic field (IGMF) affects the propagation of super-GZK protons that originate from extragalactic sources within the local GZK sphere. Toward th…
Estimation of Magnetic Field Strength in the Turbulent Warm Ionized Medium
Qingwen Wu, Jongsoo Kim, Dongsu Ryu +2
We studied Faraday rotation measure (RM) in turbulent media with the rms Mach number of unity, using isothermal, magnetohydrodynamic turbulence simulations. Four cases with differe…
Characteristic Lengths of Magnetic Field in Magnetohydrodynamic Turbulence
Jungyeon Cho, Dongsu Ryu
In the framework of turbulence dynamo, flow motions amplify a weak seed magnetic field through the stretching of field lines. Although the amplification process has been a topic of…
A study of the Correlation of Arrival Directions of UHECRs with the Large Scale Structure of the Universe
Dongsu Ryu, Hyesung Kang, Santabrata Das
Ultrahigh energy cosmic rays (UHECRs) are believed to originate from astrophysical sources, which should trace the large scale structure (LSS) of the universe. On the other hand, t…
Self-Similar Evolution of Cosmic-Ray Modified Shocks: The Cosmic-Ray Spectrum
Hyesung Kang, Dongsu Ryu, T. W. Jones
We use kinetic simulations of diffusive shock acceleration (DSA) to study the time-dependent evolution of plane, quasi-parallel, cosmic-ray (CR) modified shocks. Thermal leakage in…