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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 Date	Title	Author(s)	Type	View	Altmetrics
2020-09	SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulations	Kitamura, Keiichi; Mamashita, Tomohiro; Ryu, Dongsu	ARTICLE	73	SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulations
2020-09	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	Abbasi, R. U.; Abe, M.; Abu-Zayyad, T., et al	ARTICLE	19	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
2020-08	Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-high-energy Cosmic Rays	Abbasi, R. U.; Abe, M.; Abu-Zayyad, T., et al	ARTICLE	46	Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-high-energy Cosmic Rays
2020-08	Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment	Abbasi, R. U.; Abe, M.; Abu-Zayyad, T., et al	ARTICLE	52	Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment
2020-08	Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector	Abbasi, R. U.; Abe, M.; Abu-Zayyad, T., et al	ARTICLE	11	Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector
2020-06	Limiting the shock acceleration of cosmic ray protons in the ICM	Wittor, D; Vazza, F; Ryu, D, et al	ARTICLE	76	Limiting the shock acceleration of cosmic ray protons in the ICM
2020-05	Reconstruction of Radio Relics and X-Ray Tails in an Off-axis Cluster Merger: Hydrodynamical Simulations of A115	Lee, Wonki; Jee, M. James; Kang, Hyesung, et al	ARTICLE	72	Reconstruction of Radio Relics and X-Ray Tails in an Off-axis Cluster Merger: Hydrodynamical Simulations of A115
2020-04	Gamma-Ray and Neutrino Emissions due to Cosmic-Ray Protons Accelerated at Intracluster Shocks in Galaxy Clusters	Ha, Ji-Hoon; Ryu, Dongsu; Kang, Hyesung	ARTICLE	91	Gamma-Ray and Neutrino Emissions due to Cosmic-Ray Protons Accelerated at Intracluster Shocks in Galaxy Clusters
2020-04	Electron Firehose Instabilities in High-β Intracluster Shocks	Kim, Sunjung; Ha, Ji-Hoon; Ryu, Dongsu, et al	ARTICLE	86	Electron Firehose Instabilities in High-β Intracluster Shocks
2020-04	Transport of High-energy Charged Particles through Spatially Intermittent Turbulent Magnetic Fields	Chen, L. E.; Bott, A. F. A.; Tzeferacos, P., et al	ARTICLE	88	Transport of High-energy Charged Particles through Spatially Intermittent Turbulent Magnetic Fields
2020-03	Search for point sources of ultra-high-energy photons with the Telescope Array surface detector	Abbasi, R U; Abe, M; Abu-Zayyad, T, et al	ARTICLE	89	Search for point sources of ultra-high-energy photons with the Telescope Array surface detector
2020-02	Shock acceleration efficiency in radio relics	Botteon, A.; Brunetti, G.; Ryu, Dongsu, et al	ARTICLE	84	Shock acceleration efficiency in radio relics
2019-12	Chandra Observations of the Spectacular A3411–12 Merger Event	Andrade-Santos, Felipe; van Weeren, Reinout J.; Di Gennaro, Gabriella, et al	ARTICLE	128	Chandra Observations of the Spectacular A3411–12 Merger Event
2019-10	Turbulence Dynamo in the Stratified Medium of Galaxy Clusters	Roh, Soonyoung; Ryu, Dongsu; Kang, Hyesung, et al	ARTICLE	148	Turbulence Dynamo in the Stratified Medium of Galaxy Clusters
2019-09	A Diffusive Shock Acceleration Model for Protons in Weak Quasi-parallel Intracluster Shocks	Ryu, Dongsu; Kang, Hyesung; Ha, Ji-Hoon	ARTICLE	148	A Diffusive Shock Acceleration Model for Protons in Weak Quasi-parallel Intracluster Shocks
2019-09	Using Combined PIC and MHD to Model Particle Acceleration in Galaxy Cluster Shocks	VAN MARLE, Allard Jan; Ryu, Dongsu; KANG, Hyesung, et al	ARTICLE	57	Using Combined PIC and MHD to Model Particle Acceleration in Galaxy Cluster Shocks
2019-07	Constraints on the diffuse photon flux with energies above 1018 eV using the surface detector of the Telescope Array experiment	Abbasi, R. U.; Abe, M.; Abu-Zayyad, T., et al	ARTICLE	192	Constraints on the diffuse photon flux with energies above 1018 eV using the surface detector of the Telescope Array experiment
2019-05	Electron Preacceleration in Weak Quasi-perpendicular Shocks in High-beta Intracluster Medium	Kang, Hyesung; Ryu, Dongsu; Ha, Ji-Hoon	ARTICLE	184	Electron Preacceleration in Weak Quasi-perpendicular Shocks in High-beta Intracluster Medium
2019-04	WENO-WOMBAT: Scalable Fifth-order Constrained-transport Magnetohydrodynamics for Astrophysical Applications	Donnert, J. M. F.; Jang, H.; Mendygral, P., et al	ARTICLE	166	WENO-WOMBAT: Scalable Fifth-order Constrained-transport Magnetohydrodynamics for Astrophysical Applications
2019-04	Supersonic plasma turbulence in the laboratory	White, T. G.; Oliver, M. T.; Mabey, P., et al	ARTICLE	243	Supersonic plasma turbulence in the laboratory

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