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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.
Major research field
High Energy Astrophysics, Plasma Astrophysics, Cosmology
Desired field of research
High Energy Astrophysics, Plasma Astrophysics, Cosmology
Research Keywords and Topics
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
Research Publications
MORECosmological Shock Waves and Their Role in the Large Scale Structure of the Universe, Ryu, D., Kang, H., Hallman, E. & Jones, T. W. 2003, The Astrophysical Journal, 593, 599 - 610
Turbulence and Magnetic Fields in the Large Scale Structure of the Universe, Ryu, D., Kang, H., Cho, J. & Das, S. 2008, Science, 320, 909 - 912
A Diffusive Shock Acceleration Model for Protons in Weak Quasi-parallel Intracluster Shocks, Ryu, D., Kang, H., & Ha, J.-H. 2019, The Astrophysical Journal, 883, 60 (7pp)
국가과학기술표준분류
- ND. 지구과학(지구/대기/해양/천문)
- ND12. 천문학
- ND1207. 고에너지천문학
국가기술지도분류
- 기타 분야
- 060000. 국가기술지도(NTRM) 99개 핵심기술 분류에 속하지 않는 기타 연구
녹색기술분류
- 녹색기술관련 과제 아님
- 녹색기술관련 과제 아님
- 999. 녹색기술 관련과제 아님
6T분류
- 기타 분야
- 기타 분야
- 070000. 위의 미래유망신기술(6T) 103개 세분류에 속하지 않는 기타 연구