Diamagnetic Relativistic Pulse Accelerator, Gamma-Ray Bursts and Cosmology

反磁相对论脉冲加速器、伽马射线暴和宇宙学

• 批准号: 0406882
• 负责人: Edison Liang
• 金额: --
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-15 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0406882&HistoricalAwards=false
• 关键词: Diamagnetic; Relativistic; Pulse; Accelerator; Gamma

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.

AST-0406882 Liang最近对相对论磁化无碰撞等离子体的多维粒子模拟（PIC）证明了一种新的强大的粒子加速机制，称为反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（GRB）的许多独特特征，包括其多样而复杂的光变曲线，光谱和光谱演化。如果得到证实，这一新观点表明伽玛暴是由磁主导的爆炸而不是流体动力学爆炸引起的。 这项研究将扩大和集中PIC模拟，建立可观测的伽玛射线暴量之间的关系，并与天文数据进行测试。 当前和未来的伽玛射线暴数据库将被用来研究祖先和宇宙学问题，包括超高能宇宙射线的起源。 这项工作将导致宇宙和实验室中粒子加速的新举措，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模拟还可以转换成有吸引力的动画产品，用于教育和科学娱乐。