Law K F F, Abe Y, Morace A, Arikawa Y, Sakata S, Lee S, Matsuo K, Morita H, Ochiai Y, Liu C, Yogo A, Okamoto K, Golovin D, Ehret M, Ozaki T, Nakai M, Sentoku Y, Santos J J, d'Humières E, Korneev Ph, Fujioka S
Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan.
Department of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Phys Rev E. 2020 Sep;102(3-1):033202. doi: 10.1103/PhysRevE.102.033202.
Magnetic reconnection in a relativistic electron magnetization regime was observed in a laboratory plasma produced by a high-intensity, large energy, picoseconds laser pulse. Magnetic reconnection conditions realized with a laser-driven several kilotesla magnetic field is comparable to that in the accretion disk corona of black hole systems, i.e., Cygnus X-1. We observed particle energy distributions of reconnection outflow jets, which possess a power-law component in a high-energy range. The hardness of the observed spectra could explain the hard-state x-ray emission from accreting black hole systems.
在由高强度、大能量的皮秒激光脉冲产生的实验室等离子体中，观测到了相对论电子磁化状态下的磁重联现象。利用激光驱动的几千特斯拉磁场实现的磁重联条件，与黑洞系统（即天鹅座X-1）吸积盘日冕中的条件相当。我们观测到了重联外流喷流的粒子能量分布，其在高能范围内具有幂律分量。观测到的光谱硬度可以解释吸积黑洞系统的硬态X射线发射。
