Relativistic laboratory astrophysics with NCU 100 TW laser system
Yasuhiro Kuramitsu1*
1Department of Physics, National Central University, Jhongli, Taiwan
* presenting author:Yasuhiro Kuramitsu,
Recent progresses of laser technologies enable us to investigate space and astrophysical phenomena in laboratories. In space plasma local observations by spacecrafts provide us the microscopic information of plasma and magnetic/electric fields, however, it is difficult to obtain the global structures of the phenomena. In astrophysical plasma, in contrast, global images provide us the macroscopic information, although there is no local observation and thus no microscopic information. Laboratory experiments provide us the local and global information simultaneously. With this unique capability we have investigated plasma jets, collisionless shocks, generation and amplification of a magnetic field, magnetic reconnections, and particle acceleration relevant to space/astrophysical phenomena in laboratories. So far, most of them are limited to non-relativistic regime. With the 100 TW laser facility at National Central University (NCU) we extend our research field to relativistic phenomena in the universe. The NCU 100 TW laser has three compression chambers, six independent laser pulses, and four experimental stations, providing flexible beam lines and variety of experimental capabilities. We model astrophysical phenomena in laboratory and investigate the physical processes never accessible by astrophysical observations.

Keywords: plasma, laser, laboratory astrophysics, cosmic rays, magnetic field