456 citations · 8.7k across the 154 of their papers we have counts for
155 papers
HOW-MHD: A High-Order WENO-Based Magnetohydrodynamic Code with a High-Order Constrained Transport Algorithm for Astrophysical Applications
Jeongbhin Seo, Dongsu Ryu
Due to the prevalence of magnetic fields in astrophysical environments, magnetohydrodynamic (MHD) simulation has become a basic tool for studying astrophysical fluid dynamics. To f…
Electron-Ion Temperature Ratio in Astrophysical Shocks
John C. Raymond, Parviz Ghavamian, Artem Bohdan +9
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations. However, the values…
A Simulation Study of Ultra-relativistic Jets -- III. Particle Acceleration at FR-II Jets
Jeongbhin Seo, Dongsu Ryu, Hyesung Kang
We study the acceleration of ultra-high-energy cosmic rays (UHECRs) at FR-II radio galaxies by performing Monte Carlo simulations for the transport, scattering, and energy change o…
Cosmic Ray Acceleration and Nonthermal Radiation at Accretion Shocks in the Outer Regions of Galaxy Clusters
Ji-Hoon Ha, Dongsu Ryu, Hyesung Kang
Cosmology models predict that external accretion shocks form in the outer region of galaxy clusters due to supersonic gas infall from filaments and voids in the cosmic web. They ar…
Effects of Forcing on Shocks and Energy Dissipation in Interstellar and Intracluster Turbulences
Hyunjin Cho, Dongsu Ryu, Hyesung Kang
Observations indicate that turbulence in the interstellar medium (ISM) is supersonic () and strongly magnetized (), while in the intracluster medium…
Electron Preacceleration at Weak Quasi-perpendicular Intracluster Shocks: Effects of Preexisting Nonthermal Electrons
Ji-Hoon Ha, Dongsu Ryu, Hyesung Kang +1
Radio relics in the outskirts of galaxy clusters imply the diffusive shock acceleration (DSA) of electrons at merger-driven shocks with Mach number in the intrac…