Title: High-energy emission from Gamma-Ray Bursts Show Chinese title

Title: 伽马射线暴的高能辐射

Abstract: The number of Gamma-Ray Bursts (GRBs) detected at high energies ($\sim\,0.1-100$ GeV) has seen a rapid increase over the last decade, thanks to observations from the Fermi-Large Area Telescope. The improved statistics and quality of data resulted in a better characterisation of the high-energy emission properties and in stronger constraints on theoretical models. In spite of the many achievements and progresses, several observational properties still represent a challenge for theoretical models, revealing how our understanding is far from being complete. This paper reviews the main spectral and temporal properties of $\sim\,0.1-100$ GeV emission from GRBs and summarises the most promising theoretical models proposed to interpret the observations. Since a boost for the understanding of GeV radiation might come from observations at even higher energies, the present status and future prospects for observations at very-high energies (above $\sim$ 100 GeV) are also discussed. The improved sensitivity of upcoming facilities, coupled to theoretical predictions, supports the concrete possibility for future ground GRB detections in the high/very-high energy domain. Show Chinese abstract

Abstract: 在过去十年中，借助费米-大面积望远镜的观测，高能（$\sim\,0.1-100$ GeV）伽马射线暴 (GRB) 的探测数量迅速增加。 数据统计和质量的提升导致了高能辐射特性得到了更好的表征，并对理论模型施加了更强的约束。 尽管取得了许多成就和进展，但一些观测性质仍然对理论模型构成了挑战，这表明我们对这一领域的理解还远未完整。 本文综述了伽马射线暴 $\sim\,0.1-100$ GeV 辐射的主要光谱和时间性质，并总结了为解释观测而提出的最有前景的理论模型。 由于对 GeV 辐射的理解可能会从更高能量的观测中获得推动，因此还讨论了极高能（高于 $\sim$ 100 GeV）观测的现状和未来前景。 即将投入使用设施的灵敏度提高，结合理论预测，支持未来地面高能/极高能伽马射线暴探测的可能性。