====== Korean Numerical Astrophysics Group (KNAG) ====== Research interests of KNAG includes numerical astrophysics of * hydrodynamics, magnetohydrodynamics, astrophysical plasmas, * turbulence, cosmic ray acceleration, radiation processes, * intergalactic medium, intracluster medium, interstellar medium. galactic disks, accretion disks. ===== Meetings of 2012 ===== ^ Date/Time ^ Presentation ^ | September 14 (Friday), 3pm | Kang, Hyesung - Problems in Estimating Non-thermal Radiation from Supernova Remnants | | | Cho, Jungyeon - Growth of a Localized Seed Magnetic Field in Turbulence | | | Guo, Zhibin - Heat Transport in Tangled Magnetic Fields | | October 5 (Friday), 3pm | Ko, Juyeon - Distribution Analysis of Density, Temperature, and Velocity Field around the Clusters | | | Hong, Sungwook - Strong Accretion Shock Waves in Cluster Outskirts and Possibility of Cosmic Ray Population Inversion | | | Ahn, Kyungjin - Current Status of 21CMA | | | Ryu, Dongsu - Cosmic Magnetism | | October 26 (Friday), 3pm | Jang, Hanbyul - A Relativistic MHD Code based on an Upwind Scheme | | | Seo, Woo-Young - Numerical Simulations of Star Formation in Barred Galaxies | | | Yoo, Hyunju - Effect of Forcing Scale on MHD Turbulence | | | Kim, Hoonkyu - | November 16 (Friday), 3pm | Kim, Yonghwi - | | | Yoon, Heesun - | | | Hong, Sungwook - | | | Kwak, Kyujin - | ===== Meetings of 2011 ===== ^ Date/Time ^ Presentation ^ | November 25 (Friday), 3pm | Kwon, Hyewon - Study of Astrophysical Shock Waves using a PIC Code | | | Seo, Wooyoung - Star Formation Feedback in Barred Galaxies | | | Kim, Hoonkyu - Inverse Energy Cascade and Magnetic Helicity in 3D Driven Electron MHD (EMHD) Turbulence | | | Akahori, Takuya - Shock and Turbulence in Galaxy Clusters and the Large-Scale Structure | | November 4 (Friday), 3pm | Jang, Hanbyul - Toward a Relativistic Magnetohydrodynamic Code | | | Kim, Jeong-Gyu - Gravitational Instability in Vertically Stratified/Pressure-confined Disks | | | Yoo, Hyunju - Effects of Multiple Driving Scales on Turbulence Statistics | | | Yoon, Heesun - Estimate the Magnetic Field Strength using Rotation Measure | | October 14 (Friday), 3pm | Kim, JiHee - Updated Comparison study of Extensive Air Shower Simulations with CORSIKA and COSMOS | | | Kim, Yonghwi - Effects of Spiral Arms on the Gaseous Features of Barred Spiral Galaxies | | | Cho, Hyunjin - Probability Distribution Function of Density in Turbulent Molecular Clouds | | | Ahn, Kyungjin - Probing the First Stars through Planck | | September 23 (Friday), 3pm | Roh, Soonyoung - A Comparative Study of COSMOS and CORSIKA Extensive Air Shower Simulations | | | Park, Junseung - A Scaling of Velocity and Magnetic Fields in Decaying Turbulence in Expanding/Collapsing Media | | | Hong, Sungwook - 2D Genus Topology of 21cm Differential Brightness Temperature during Cosmic Reionizationi | | | Ryu, Dongsu - Magnetic Field in Voids | ===== Meetings of 2010 ===== ^ Date/Time ^ Presentation ^ | December 17 (Friday), 3pm | Jang, Hanbyul - Relativistic Hydrodynamic Code for Multi-component Fluids | | | Yoon, Hee-Sun - Correlation between Density and Magnetic Field Strengths in Compressible MHD Turbulence | | | Yoo, Hyun-Ju - Statistics of Isothermal Compressible Turbulence in Simulations: Single versus Double Forcing | | | Kim, Jongsoo - Introduction to CUDA Programming Basics | | November 26 (Friday), 3pm | Kim, Jeong-Gyu - Gravitational Instability of Pressure-confined Rotating Polytropic Disks | | | Kim, Hoon-Kyoo - Inverse Energy Cascade of Semi-2D Turbulence | | | Ahn, Kyungjin - Cosmic Reionization by the First Stars | | | Cho, Jungyeon - Non-locality of HD and MHD Turbulence | | October 22 (Friday), 3pm | Park, Junseung - MHD Turbulence in Expanding/Collapsing Media | | | Cho, Hyunjin - Turbulence in Molecular Clouds: Observation versus Simulation | | | Akahori, Takuya - Exploring Faraday Rotation Measure due to the Intergalactic Magnetic Field with the Square Kilometer Array | | | Kang, Hyesung - Cosmic Ray Spectrum in SN Ia Remnants | | September 10 (Friday), 3pm | Kim, Chang-Goo - Regulation of Star Formation Rates in Multiphase Galactic Disks: Numerical Tests of the Thermal/Dynamical Equilibrium Model | | | Roh, Soonyoung - Dethinning Algorithm in Air Shower Simulations | | | Kim, JiHee - Energy Estimator of Ultra-High Energy Cosmic Rays(UHECRs) Using GEANT4 Simulation | | | Ryu, Dongsu - A Model for the Intergalactic Magnetic Field and its Astrophysical Implications | ===== Current Members ===== * Chosun University, Department of Earth Science - Ahn, Kyungjin (professor) * Chungnam National University, Department of Astronomy and Space Science - Cho, Jungyeon (professor) - Hong, Sungwook (postdoc) - Jang, Hanbyul (student) - Kim, Hoon-Kyoo (student) - Ko, Juyeon (student) - Ryu, Dongsu (professor) - Yoo, Hyun-Ju (student) - Yoon, Hee-Sun (student) * Korea Astronomy and Space Science Institute - Kim, Jongsoo (staff scientist) - Hayasaki, Kimitake (postdoc) - Kwak, Kyujin (postdoc) * NFRI WCI Center for Fusion Theory - Jo, Gahyung (student) - Kwon, Jae-Min (staff scientist) * Pusan National University, Department of Earth Science - Cho, Hyunjin (student) - Kang, Hyesung (professor) * Seoul National University, Department of Physics and Astronomy - Kim, Jeong-Gyu (student) - Kim, Yonghwi (student) - Kim, Woong-Tae (professor) - Lim, Hyeongmuk (student) - Seo, Woo Young (student)