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Ryu, Dongsu (류동수)

Department
Department of Physics(물리학과)
Website
http://sirius.unist.ac.kr/ryu/
Lab
Astrophysics Lab. (천체물리 연구실)
Research Keywords
천체물리학, 은하단, Astrophysics, Shock waves, Galaxy clusters, High Energy Astrophysics, Plasma Astrophysics, Cosmology
Research Interests
The universe contains cosmic plasma of baryonic matter, in addition to dark matter and dark energy. The so-called nonthermal components of the plasma, that is, shock waves, magnetic fields, cosmic rays and turbulence, are expected to play significant roles in the formation and observation of the large-scale structure of the universe. Yet their nature and origin are not fully understood. In the lab, the cosmic plasma as well as dark matter and dark energy are explored. Along with numerical simulations for the formation of the cosmic web, theoretical arguments based on plasma physical models for collisionless shock wave formation, cosmic ray acceleration, astrophysical turbulence, and magnetic field generation are employed.
Research Areas- Shock waves and turbulence in clusters of galaxies- Origin and evolution of magnetic fields and cosmic rays in the universe- Plasma astrophysical phenomena in the large-scale structure of the universe
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Issue DateTitleAuthor(s)TypeViewAltmetrics
2020-09SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulationsKitamura, Keiichi; Mamashita, Tomohiro; Ryu, DongsuARTICLE73 SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulations
2020-09Measurement of the proton-air cross section with Telescope Array’s Black Rock Mesa and Long Ridge fluorescence detectors, and surface array in hybrid modeAbbasi, R. U.; Abe, M.; Abu-Zayyad, T., et alARTICLE19 Measurement of the proton-air cross section with Telescope Array’s Black Rock Mesa and Long Ridge fluorescence detectors, and surface array in hybrid mode
2020-08Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-high-energy Cosmic RaysAbbasi, R. U.; Abe, M.; Abu-Zayyad, T., et alARTICLE46 Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-high-energy Cosmic Rays
2020-08Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array ExperimentAbbasi, R. U.; Abe, M.; Abu-Zayyad, T., et alARTICLE52 Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment
2020-08Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface DetectorAbbasi, R. U.; Abe, M.; Abu-Zayyad, T., et alARTICLE11 Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector
2020-06Limiting the shock acceleration of cosmic ray protons in the ICMWittor, D; Vazza, F; Ryu, D, et alARTICLE76 Limiting the shock acceleration of cosmic ray protons in the ICM
2020-05Reconstruction of Radio Relics and X-Ray Tails in an Off-axis Cluster Merger: Hydrodynamical Simulations of A115Lee, Wonki; Jee, M. James; Kang, Hyesung, et alARTICLE72 Reconstruction of Radio Relics and X-Ray Tails in an Off-axis Cluster Merger: Hydrodynamical Simulations of A115
2020-04Gamma-Ray and Neutrino Emissions due to Cosmic-Ray Protons Accelerated at Intracluster Shocks in Galaxy ClustersHa, Ji-Hoon; Ryu, Dongsu; Kang, HyesungARTICLE91 Gamma-Ray and Neutrino Emissions due to Cosmic-Ray Protons Accelerated at Intracluster Shocks in Galaxy Clusters
2020-04Electron Firehose Instabilities in High-β Intracluster ShocksKim, Sunjung; Ha, Ji-Hoon; Ryu, Dongsu, et alARTICLE86 Electron Firehose Instabilities in High-β Intracluster Shocks
2020-04Transport of High-energy Charged Particles through Spatially Intermittent Turbulent Magnetic FieldsChen, L. E.; Bott, A. F. A.; Tzeferacos, P., et alARTICLE88 Transport of High-energy Charged Particles through Spatially Intermittent Turbulent Magnetic Fields
2020-03Search for point sources of ultra-high-energy photons with the Telescope Array surface detectorAbbasi, R U; Abe, M; Abu-Zayyad, T, et alARTICLE89 Search for point sources of ultra-high-energy photons with the Telescope Array surface detector
2020-02Shock acceleration efficiency in radio relicsBotteon, A.; Brunetti, G.; Ryu, Dongsu, et alARTICLE84 Shock acceleration efficiency in radio relics
2019-12Chandra Observations of the Spectacular A3411–12 Merger EventAndrade-Santos, Felipe; van Weeren, Reinout J.; Di Gennaro, Gabriella, et alARTICLE128 Chandra Observations of the Spectacular A3411–12 Merger Event
2019-10Turbulence Dynamo in the Stratified Medium of Galaxy ClustersRoh, Soonyoung; Ryu, Dongsu; Kang, Hyesung, et alARTICLE148 Turbulence Dynamo in the Stratified Medium of Galaxy Clusters
2019-09A Diffusive Shock Acceleration Model for Protons in Weak Quasi-parallel Intracluster ShocksRyu, Dongsu; Kang, Hyesung; Ha, Ji-HoonARTICLE148 A Diffusive Shock Acceleration Model for Protons in Weak Quasi-parallel Intracluster Shocks
2019-09Using Combined PIC and MHD to Model Particle Acceleration in Galaxy Cluster ShocksVAN MARLE, Allard Jan; Ryu, Dongsu; KANG, Hyesung, et alARTICLE57 Using Combined PIC and MHD to Model Particle Acceleration in Galaxy Cluster Shocks
2019-07Constraints on the diffuse photon flux with energies above 1018 eV using the surface detector of the Telescope Array experimentAbbasi, R. U.; Abe, M.; Abu-Zayyad, T., et alARTICLE192 Constraints on the diffuse photon flux with energies above 1018 eV using the surface detector of the Telescope Array experiment
2019-05Electron Preacceleration in Weak Quasi-perpendicular Shocks in High-beta Intracluster MediumKang, Hyesung; Ryu, Dongsu; Ha, Ji-HoonARTICLE184 Electron Preacceleration in Weak Quasi-perpendicular Shocks in High-beta Intracluster Medium
2019-04WENO-WOMBAT: Scalable Fifth-order Constrained-transport Magnetohydrodynamics for Astrophysical ApplicationsDonnert, J. M. F.; Jang, H.; Mendygral, P., et alARTICLE166 WENO-WOMBAT: Scalable Fifth-order Constrained-transport Magnetohydrodynamics for Astrophysical Applications
2019-04Supersonic plasma turbulence in the laboratoryWhite, T. G.; Oliver, M. T.; Mabey, P., et alARTICLE243 Supersonic plasma turbulence in the laboratory

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