448 citations · 1.3k across the 12 of their papers we have counts for
11 papers
Simulation Study of Binary Mergers of Galaxy Clusters I: Properties of Merger Shocks and Radio Emission
Hyesung Kang, Dongsu Ryu, Jeongbhin Seo
We investigate binary mergers of galaxy clusters, the formation of shocks, and the resulting radio relics using three-dimensional simulations. The initial setup consists of two ide…
Energy Spectrum and Mass Composition of Ultra-High-Energy Cosmic Rays Originating from Relativistic Jets of Nearby Radio Galaxies
Jeongbhin Seo, Dongsu Ryu, Hyesung Kang
Relativistic jets of radio galaxies (RGs) are possible sources of ultra-high-energy cosmic rays (UHECRs). Recent studies combining relativistic hydrodynamic simulations with Monte…
A Simulation Study of Low-Power Relativistic Jets: Flow Dynamics and Radio Morphology of FR-I Jets
Ayan Bhattacharjee, Jeongbhin Seo, Dongsu Ryu +1
Radio galaxies are classified into two primary categories based on their morphology: center-brightened FR-I and edge-brightened FR-II. It is believed that the jet power and interac…
Morphology and Mach Number Distribution of Merger Shock Surfaces in Merging Galaxy Clusters
Eunyu Lee, Dongsu Ryu, Hyesung Kang
In a binary merger of two subclusters with comparable masses, a pair of merger shocks are typically generated, often manifesting as double radio relics. Using cosmological hydrodyn…
Radio surface fluctuations in radio relics
Paola Domínguez-Fernández, Dongsu Ryu, Hyesung Kang
Recent observations have revealed detailed structures of radio relics in a wide range of frequencies. In this work, we perform three-dimensional magnetohydrodynamical simulations o…
Model Spectrum of Ultra-High-Energy Cosmic Rays Accelerated in FR-I Radio Galaxy Jets
Jeongbhin Seo, Dongsu Ryu, Hyesung Kang
Nearby radio galaxies (RGs) of Fanaroff-Riley Class I (FR-I) are considered possible sites for the production of observed ultra-high-energy cosmic rays (UHECRs). Among those, some…