论文标题
GRB 221009a迅速排放的多理智模型
Multi-messenger model for the prompt emission from GRB 221009A
论文作者
论文摘要
我们为内部冲击场景中的GRB 221009A迅速排放介绍了一个多理智模型。我们考虑了流出的时间依赖性演变，其影响对多个碰撞的观察到光曲线的影响，以及同步器和以compto的场景为单位的电磁频谱的自洽产生。我们的Leptohardronic模型包括流出中可能加速的UHE质子，以及它们对光谱能量分布和中微子发射的反馈。我们发现，我们可以用具有不同的超浮雕材料的弹出速度的发动机大致复制观测到的光曲线，该发动机的中间静止期约为200秒，并且可变性的时间表为$ \ sim1 $ 〜s。我们认为3和30的重型载荷与以下假设兼容，即最高的lhaaso光子可能来自UHECR与外层次背景光的UHECR相互作用，而能量GRB可以为UHECR助理供电的范式。对于这些值和高耗散半径，我们发现与中微子非观察的一致性，电磁频谱上没有明显的特征。证明来自迅速发射的反向康普顿主导的场景已导致HE范围内的通量较高。通过在费米 - GBM和LAT范围内的光谱影响来测试这种增强。
We present a multi-messenger model for the prompt emission from GRB 221009A within the internal shock scenario. We consider the time-dependent evolution of the outflow with its impact on the observed light curve from multiple collisions, and the self-consistent generation of the electromagnetic spectrum in synchrotron and inverse Compton-dominated scenarios. Our leptohadronic model includes UHE protons potentially accelerated in the outflow, and their feedback on spectral energy distribution and on the neutrino emission. We find that we can roughly reproduce the observed light curves with an engine with varying ejection velocity of ultra-relativistic material, which has an intermediate quiescent period of about 200 seconds and a variability timescale of $\sim1$~s. We consider baryonic loadings of 3 and 30 that are compatible with the hypothesis that the highest-energetic LHAASO photons might come from UHECR interactions with the extragalactic background light, and the paradigm that energetic GRBs may power the UHECR flux. For these values and the high dissipation radii considered we find consistency with the non-observation of neutrinos and no significant signatures on the electromagnetic spectrum. Inverse Compton-dominated scenarios from the prompt emission are demonstrated to lead to about an order of magnitude higher fluxes in the HE-range; this enhancement is testable by its spectral impact in the Fermi-GBM and LAT ranges.
