论文标题
与短伽马射线爆发的扩展和平稳发射相关的外部逆孔子排放：应用于GRB 160821b
External Inverse-Compton Emission Associated with Extended and Plateau Emission of Short Gamma-Ray Bursts: Application to GRB 160821B
论文作者
论文摘要
最近从两个伽马射线爆发（GRB）的TEV光子（GRB 190114C和GRB 180720b）发现了一个新的窗口，用于高能瞬态的多通信和多波长天体物理学。我们研究了Short GRB 160821B的非常高的能量（VHE）$γ$ - 流量的起源，为此，魔术协作报告了$ \ sim3σ$统计意义。短GRB通常伴随着扩展和平稳的发射，这归因于持续持续的中央发动机的活动导致内部耗散，Murase等人。 （2018年）最近提出了短GRB和中子星合并的VHE对应物的外部逆孔子（EIC）方案。将这种情况应用于GRB 160821b，我们表明EIC可以达到$ \ sim 10^{ - 12} \ rm〜Erg〜cm^cm^{ - 2} 〜s^{ - 1} $在$ \ sim 10^3-10^3-10^4 \ rmm〜S $的时间内，这是一致的。 EIC $γ$ - 预期在扩展和高原排放期间将被检测到未来的检测器（例如Cherenkov望远镜阵列（CTA））具有更大的意义。所得的光曲线具有可区分的特征，其中预计VHE发射将达到种子发射末端的峰值。
The recent detection of TeV photons from two gamma-ray bursts (GRBs), GRB 190114C and GRB 180720B, has opened a new window for multi-messenger and multi-wavelength astrophysics of high-energy transients. We study the origin of very-high-energy (VHE) $γ$-rays from the short GRB 160821B, for which the MAGIC Collaboration reported a $\sim 3 σ$ statistical significance. Short GRBs are often accompanied by extended and plateau emission, which is attributed to internal dissipation resulting from activities of a long-lasting central engine, and Murase et al. (2018) recently suggested the external inverse-Compton (EIC) scenario for VHE counterparts of short GRBs and neutron star mergers. Applying this scenario to GRB 160821B, we show that the EIC flux can reach $\sim 10^{-12}\rm~erg~cm^{-2}~s^{-1}$ within a time period of $\sim 10^3 - 10^4\rm~s$, which is consistent with the MAGIC observations. EIC $γ$-rays expected during the extended and plateau emission will be detectable with greater significance by future detectors such as the Cherenkov Telescope Array (CTA). The resulting light curve has a distinguishable feature, where the VHE emission is predicted to reach the peak around the end of the seed emission.
