实际混合模式的AGN中微子通量估算
AGN Neutrino flux estimates for a realistic hybrid model
摘要：
最近关于冰立方观测到的高能中微子与活动星系核（AGN）活动之间可能存在相关性的报道引发了一系列试图预测这些来源的中微子通量的出版物。然而，通常相当粗略的估计是用来从观测到的光子谱中推导中微子速率。在这项工作中，中微子通量计算在一个广泛的参数空间。模型的起点是\textit{3C 279}的全谱能量密度（SED）的表示。用于本研究的时间依赖性混合模型考虑了完整的$pγ$反应链以及质子同步加速器、电子-正电子对级联和完整的SSC方案。我们比较我们的结果，经常在文献中使用的估计。这允许在参数空间中识别这样的估计仍然有效的区域以及它们可能产生显著误差的区域。此外，如果存在对多普勒因子、磁场、质子和电子密度的估计，则可以容易地获得预期的冰立方探测率。
英文摘要：
Recent reports of possible correlations between high energy neutrinos observed by IceCube and Active Galactic Nuclei (AGN) activity sparked a burst of publications that attempt to predict the neutrino flux of these sources. However, often rather crude estimates are used to derive the neutrino rate from the observed photon spectra. In this work neutrino fluxes were computed in a wide parameter space. The starting point of the model was a representation of the full spectral energy density (SED) of \textit{3C 279}. The time-dependent hybrid model that was used for this study takes into account the full $pγ$ reaction chain as well as proton synchrotron, electron-positron-pair cascades and the full SSC scheme. We compare our results to estimates frequently used in the literature. This allows to identify regions in the parameter space for which such estimates are still valid and those in which they can produce significant errors. Furthermore, if estimates for the Doppler factor, magnetic field, proton and electron densities of a source exist, the expected IceCube detection rate is readily available.
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