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19942023
most citedThe Protogalactic Origin for Cosmic Magnetic Fields

456 citations · 8.7k across the 154 of their papers we have counts for

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Showing astro-ph.HEShow all

44 papers · 1 filter

astro-ph.HE2023★ 11 cited

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…

astro-ph.HE2023★ 1 cited

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…

astro-ph.HE2022★ 18 cited

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…

astro-ph.HE2021★ 13 cited

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…

astro-ph.HE2021★ 1 cited

A Simulation Study of Ultra-relativistic Jets -- II. Structures and Dynamics of FR-II Jets

Jeongbhin Seo, Hyesung Kang, Dongsu Ryu

We study the structures of ultra-relativistic jets injected into the intracluster medium (ICM) and the associated flow dynamics, such as shocks, velocity shear, and turbulence, thr…

astro-ph.HE2021★ 1 cited

A Simulation Study of Ultra-Relativistic Jets -- I. A New Code for Relativistic Hydrodynamics

Jeongbhin Seo, Hyesung Kang, Dongsu Ryu +2

In an attempt to investigate the structures of ultra-relativistic jets injected into the intracluster medium (ICM) and the associated flow dynamics, such as shocks, velocity shear,…