6 papers
Structure Shocks as a Source of Cosmic Rays in Clusters
T. W. Jones, Francesco Miniati, Dongsu Ryu +2
Shocks are a ubiquitous consequence of cosmic structure formation, and they play an essential role in heating galaxy cluster media. Virtually all of the gas in clusters has been pr…
Formation of Proto-Globular Cluster Clouds by Thermal Instability
Hyesung Kang, George Lake, Dongsu Ryu
Many models of globular cluster formation assume the presence of cold dense clouds in early universe. Here we re-examine the Fall & Rees (1985) model for formation of proto-globula…
Large Cosmic Shock Waves as Sites for Particle Acceleration
Francesco Miniati, Dongsu Ryu, Hyesung Kang +1
The properties of cosmic shock waves are studied through numerical simulations in two cosmological scenarios (SCDM and LCDM). The scaling relations for the average radius and veloc…
Ion injection and acceleration at modified shocks
U. D. J. Gieseler, T. W. Jones, Hyesung Kang
The theory of diffusive particle acceleration explains the spectral properties of the cosmic rays below energies of approx. 10^6 GeV as produced at strong shocks in supernova remna…
Cosmic Structure of Magnetic Fields
Peter L. Biermann, Hyesung Kang, Joerg P. Rachen +1
The simulations of the formation of cosmological structure allows to determine the spatial inhomogeneity of cosmic magnetic fields. Such simulations, however, do not give an absolu…
Close Encounters between a Neutron Star and a Main-Sequence Star
Hyung Mok Lee, Sungsoo S. Kim, Hyesung Kang
We have examined consequences of strong tidal encounters between a neutron star and a normal star using SPH as a possible formation mechanism of isolated recycled pulsars in globul…