Intergalactic magnetic fields and plasma effects of relativistic pair beams from photon-photon-absorption of the TeV emission of cosmological blazars

AIR-Cherenkov遥视望远镜在宇宙学距离上对30多个blazar进行TeV探测，导致了新的等离子体blazar宇宙学学科的出现，我们小组做出了积极和重要的贡献。任何比红移$z=0.16$更远的blazar都会在与河外背景光的双光子碰撞中产生高能粒子束，在未磁化的星系间介质中，这会受到快速双流性质的静电和电磁不稳定性的影响。星际介质中自由对光束能量的耗散对星际介质的热历史和再电离时代后宇宙结构的形成具有重要的影响。该方案描述了重要的等离子体物理和粒子物理过程，包括更详细的双光子碰撞产生对的相对论运动学，对束产生的倾斜静电和电磁涨落的动力学不稳定性分析，驰豫相对论对在波动的非周期磁场中的抖动辐射射电晕，以及研究等离子体对未磁化星际介质中超高能强子束的影响。

The TeV detections of more than 30 blazars at cosmological distances by air-Cherenkov telecopes have led to the emergence of the new plasma-blazar-cosmology discipline with active and important contributions from our group. Any blazar more distant than redshift $z=0.16$ produces energetic $e^{\pm }$ particle beams in double photon collisions with the extragalactic background light, which are subject to rapid two-stream-like instabilities of both electrostatic and electromagnetic nature in the unmagnetized intergalactic medium. The dissipation of the free pair beam energy in the intergalactic medium has important consequences for the thermal history of the intergalactic medium and the formation of cosmic structures after the reionization epoch. The proposal adresses important plasma physical and particle physical processes, including the more detailed relativistic kinematics of pair production by double photon collision, the kinetic instability analysis of oblique electrostatic and electromagnetic fluctuations from pair beams, jitter radiation radio halos of relaxed relativistic pairs in fluctuating aperiodic magnetic fields, and the investigation of plasma effects on ultrahighenergy hadron beams in the unmagnetized intergalactic medium.