Diamagnetic Relativistic Pulse Accelerator, Gamma-Ray Bursts and Cosmology

最近对相对论磁化无碰撞等离子体的多维粒子胞内（PIC）模拟证明了一种新的鲁棒粒子激励机制，称为抗磁相对论脉冲加速器（DRPA）。随后的模拟表明，DRPA再现了宇宙伽马射线暴（GRBs）的许多独特特征，包括它们多样而复杂的光曲线、光谱和光谱演化。如果得到证实，这个新想法表明，伽马射线暴是由磁场主导的爆炸引起的，而不是由流体动力爆炸引起的。本研究将扩展和聚焦PIC模拟，构建可观测GRB数量之间的关系，并用天文数据对其进行验证。目前和未来的GRB数据库将用于研究祖先和宇宙学问题，包括超高能量宇宙射线的起源。这项工作将在宇宙和实验室中引领粒子加速的新举措，并将激发对广义相对论中超强磁场与强引力相互作用的新研究。PIC模拟也可以转换成有吸引力的动画产品，用于教育和科学娱乐。

AST-0406882LiangRecent multi-dimensional Particle-in-Cell (PIC) simulations of relativistic magnetized collisionless plasmas demonstrated a new robust particle energization mechanism, called the Diamagnetic Relativistic Pulse Accelerator (DRPA). Subsequent simulations suggest that DRPA reproduces many unique signatures of cosmic gamma-ray bursts (GRBs), including their diverse and complex light curves, spectra and spectral evolution. If confirmed, this new idea suggests that GRBs are caused by magnetic-dominated, rather than hydrodynamic, explosions. This research will expand and focus PIC simulations, to construct relations between observable GRB quantities and test them with astronomical data. Current and future GRB databases will then be used to investigate progenitor and cosmological questions, including the origin of ultra-high-energy cosmic rays. This work will lead to new initiatives in particle acceleration, both cosmic and in the laboratory, and will stimulate new research on the interaction of ultra-strong magnetic fields with strong gravity in general relativity. PIC simulations can also be converted into attractive animation products for education and scientific entertainment.