论文标题
Agn喷气机作为UHECR的起源和观点,用于检测EEV能量的天体物理源中微子
AGN jets as the origin of UHECRs and perspectives for the detection of astrophysical source neutrinos at EeV energies
论文作者
论文摘要
我们证明,活性银河核(AGN)的种群可以描述脚踝处及以上观察到的超高能量宇宙射线(UHECRS)的光谱,并且主要的贡献来自低亮度BL lacs。需要提高高光度AGN的另一种亚尺寸贡献,以改善组成可观察物的描述,从而导致在EEV能量处达到峰值的大量中微子通量。我们还发现,需要低亮度和高发性AGN种群的不同特性。可能已经从当前的IceCube观测值中排除了可能类似的重型载荷。我们还表明,从源内发出的中微子的通量应超过UHECR传播过程中产生的宇宙中微子。该结果对超高能量($ \ sim $ eev)中微子实验具有深远的影响,因为与宇宙基因中微子相比,可以将其他搜索策略用于源中微子,例如堆叠搜索,耀斑分析和多货物的随访。
We demonstrate that a population of Active Galactic Nuclei (AGN) can describe the observed spectrum of ultra-high-energy cosmic rays (UHECRs) at and above the ankle, and that the dominant contribution comes from low-luminosity BL Lacs. An additional, subdominant contribution from high-luminosity AGN is needed to improve the description of the composition observables, leading to a substantial neutrino flux that peaks at EeV energies. We also find that different properties for the low- and high-luminosity AGN populations are required; a possibly similar baryonic loading can already be excluded from current IceCube observations. We also show that the flux of neutrinos emitted from within the sources should outshine the cosmogenic neutrinos produced during the propagation of UHECRs. This result has profound implications for the ultra-high-energy ($\sim$EeV) neutrino experiments, since additional search strategies can be used for source neutrinos compared to cosmogenic neutrinos, such as stacking searches, flare analyses, and multi-messenger follow-ups.