论文标题
超高能量宇宙射线的次要GEV-TEV排放，GRB 221009A加速
Secondary GeV-TeV emission from ultra-high-energy cosmic rays accelerated by GRB 221009A
论文作者
论文摘要
超高能宇宙射线（UHECR）的起源仍然难以捉摸。伽马射线爆发（GRB）是能够满足颗粒加速到如此高能量所需的严格能量需求的最佳候选者之一。如果GRB 221009a的中央发动机加速UHECR，则可能会在UHECRS从源到地球传播时检测次级光子和中微子。在这里，我们试图解释与此爆发相关的一些早期公开数据。如果报告的早期GEV-TEV检测是通过UHECRS的次级发射产生的，则可能表明UHECR达到了$> 10^{21} $ eV的能量，而GRB 221009a在磁性空隙内爆炸，带有galactic磁场（IGMF）强度$ b \ leq 3 \ tiles 10^$ 16}的磁场（IGMF）强度$ b \ leq 3^$ 16}。建议搜索现有的和将来的费米 - 拉特数据，以了解较大的空间尺度和较长时间尺度的次级发射。该策略可能有助于阐明UHECR的起源，沿着这一视线限制层间磁场（IGMF）强度，并开始量化GRB周围磁性空隙的分数。
The origin of ultra-high-energy cosmic rays (UHECRs) remains elusive. Gamma-ray bursts (GRBs) are among the best candidates able to meet the stringent energy requirements needed for particle acceleration to such high energies. If UHECRs were accelerated by the central engine of GRB 221009A, it might be possible to detect secondary photons and neutrinos as the UHECRs travel from the source to the Earth. Here we attempt to interpret some of the early publicly available data connected to this burst. If the reported early GeV-TeV detection was produced by secondary emission from UHECRs it probably indicates that UHECRs reached energies $> 10^{21}$ eV and that GRB 221009A exploded inside a magnetic void with intergalactic magnetic field (IGMF) strength $B \leq 3 \times 10^{-16}$ G. In order to understand the entire energy deposition mechanism, we propose to search existing and future Fermi-LAT data for secondary emission arriving over larger spatial scales and longer time-scales. This strategy might help clarify the origin of UHECRs, constrain the intergalactic magnetic field (IGMF) strength along this line of sight and start to quantify the fraction of magnetic voids around GRBs.
