Research Project
Grant-in-Aid for Young Scientists (B)
By using large-scale plasma particle simulations, we study high-Mach number collisionless shocks in weakly magnetized electron-proton plasmas, which are frequently driven in a variety of astrophysical environment, such as supernova remnants. It is shown that the Weibel instability is driven in the shock transition region even in perpendicular shocks, and then, turbulent magnetic fields are generated by this instability in the transition region and the downstream region. It is also found that in quasi-parallel shocks a particle acceleration mechanism similar to the Fermi acceleration works and efficiently generates high-energy particles with a power-law energy spectrum.
All 2012 2011 2010
All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (17 results)
New Journal of Physics
Volume: 13 Issue: 9 Pages: 8-8
10.1088/1367-2630/13/9/093001
Physics of Plasmas
Volume: 17 Issue: 12 Pages: 15-15
10.1063/1.3524269
The AstrophysicalJournal
Volume: 721 Issue: 1 Pages: 828-842
10.1088/0004-637x/721/1/828
The Astrophysical Journal
Volume: 721 Pages: 828-842
Volume: 17