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首页> 外文期刊>The Astrophysical journal >IMAGES OF BURSTING SOURCES OF HIGH-ENERGY COSMIC RAYS: EFFECTS OF MAGNETIC FIELDS
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IMAGES OF BURSTING SOURCES OF HIGH-ENERGY COSMIC RAYS: EFFECTS OF MAGNETIC FIELDS

机译：高能宇宙射线爆裂源的图像：磁场的影响

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摘要

It has recently been shown that the highest energy cosmic rays (CRs) may originate in the same cosmological objects that produce γ-ray bursts. This model requires the presence of an intergalactic magnetic field (IGMF) to delay the arrival times of ?10~(20) eV CRs by 50 yr or longer relative to the γ-rays, of an amplitude that is consistent with other observational constraints. Sources of CRs coming from individual bursts should be resolved with the planned "Auger" experiment, with as many as hundreds of CRs for the brightest sources. We analyze here the apparent angular and energy distribution of CRs from bright sources below the pion production threshold (in the energy range 10~(19) eV < E < 4 x 10~(19) eV) expected in this model. This observable distribution depends on the structure of the IGMF: the apparent spectral width ΔE is small, ΔE/E approx < 1%, if the intergalactic field correlation length λ is much larger than 1 Mpc, and large, ΔE/E = 0.3, in the opposite limit, λ < < 1 Mpc. The apparent angular size is also larger for smaller λ. If the sources of CRs we predict are found, they will corroborate the bursting model and provide us with a technique to investigate the structure of the IGMF.
机译：最近显示，最高能量的宇宙射线（CR）可能起源于产生γ射线爆发的同一宇宙物体。该模型需要星际磁场（IGMF）的存在，以使？10〜（20）eV CRs的到达时间相对于γ射线延迟50年或更长时间，其振幅与其他观测约束一致。来自单个脉冲串的CR来源应通过计划的“ Auger”实验来解决，其中最亮的来源应包含多达数百个CR。在这里，我们分析了该模型预期的，低于光子产生阈值（在能量范围10〜（19）eV

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