论文标题
外部逆孔子和质子同步子从反向冲击发出，作为来自Hyper-Bright GRB 221009A的VHE伽马射线的起源
External Inverse-Compton and Proton Synchrotron Emission from the Reverse Shock as the Origin of VHE Gamma-Rays from the Hyper-Bright GRB 221009A
论文作者
论文摘要
检测超亮伽马射线爆发（GRB）221009a使我们能够探索GRB发射的性质和非常高的能量（VHE）伽马射线的起源。我们分析了$ {\ it fermi} $ - LAT数据，并在外部反向冲击模型的框架中研究GEV-TEV排放。我们表明，早期的$ \ sim1-10 $ gev排放可以通过外部逆孔子机制来解释，除了同步型自我compton组件外，电子通过向反向冲击加速的电子进行射向MEV伽马射线。预测的早期光通量可能比裸眼GRB 080319b更明亮。我们还表明，可以检测到来自加速的超高能量宇宙射线（UHECR）的质子同步子发射，并且可以约束可以约束LHAASO或UHECR加速器检测到的$ \ gtrsim \ rm TEV $光子。我们的模型表明，可以检测$ \ MATHCAL {O}（10 \ rm〜tev）$光子，能量高达$ \ sim18 $ tev是可能的，用于合理的外静态背景光的合理模型，而无需调用新物理学，并预测MEV Photos和Tev Photos之间的反相关性，可以与Lhaaso进行测试。
The detection of the hyper-bright gamma-ray burst (GRB) 221009A enables us to explore the nature of GRB emission and the origin of very-high-energy (VHE) gamma-rays. We analyze the ${\it Fermi}$-LAT data and investigate GeV-TeV emission in the framework of the external reverse shock model. We show that early $\sim1-10$ GeV emission can be explained by the external inverse-Compton mechanism via upscattering MeV gamma-rays by electrons accelerated at the reverse shock, in addition to the synchrotron self-Compton component. The predicted early optical flux could have been brighter than the naked-eye GRB 080319B. We also show that proton synchrotron emission from accelerated ultra-high-energy cosmic rays (UHECRs) is detectable, and could potentially explain $\gtrsim \rm TeV$ photons detected by LHAASO or UHECR acceleration can be constrained. Our model suggests that the detection of $\mathcal{O}(10\rm~TeV)$ photons with energy up to $\sim18$ TeV is possible for reasonable models of the extragalactic background light without invoking new physics, and predicts anti-correlations between MeV photons and TeV photons, which can be tested with the LHAASO data.
