论文标题
质子同步加速器$γ$ -rays和Blazars的能源危机
Proton Synchrotron $γ$-rays and the Energy Crisis in Blazars
论文作者
论文摘要
在Blazars喷气机中高能排放的起源（即，Leptonic ves Hadroonic）一直是辩论的长期问题。在这里，我们关注的一种变体模型，其中质子同步辐射构成了观察到的稳定$γ$ -Ray-ray blazar发射。使用分析方法，我们考虑了迄今为止分析的最大的Blazar样本（145个来源），从而得出了最小喷气功率（$ p_ {j，\ min} $），同时考虑了可观察到的物理参数的不确定性。我们将$ p_ {J，\ min} $与用于吸收系统的三个特征能量估计器进行了比较，即爱丁顿的发光度，积聚磁盘的发光度以及Blandford-Znajek过程的功能，并发现$ P_ {J，\ min} $比所有能量估计效应的示例均高于大约2个级别。发射区域中的磁场强度需要大量扩增射流磁场（系数30），或将$γ$ -Ray生产位点放在子PC尺度上。预期的中微子排放峰值在$ \ sim 0.1-10 $ eev，具有典型的峰值中微子通量$ \ sim 10^{ - 4} $倍$次$次$次$次$γ$ ray-ray-ray通量。我们得出的结论是，如果相对论性的放射子存在于Blazar喷气机中，那么它们只能在Blazar稳定排放的整体光谱能量分布中产生辐射的亚尺寸分量。
The origin of high-energy emission in blazars jets (i.e., leptonic versus hadronic) has been a long-standing matter of debate. Here, we focus on one variant of hadronic models where proton synchrotron radiation accounts for the observed steady $γ$-ray blazar emission. Using analytical methods, we derive the minimum jet power ($P_{j,\min}$) for the largest blazar sample analyzed to date (145 sources), taking into account uncertainties of observables and jet's physical parameters. We compare $P_{j,\min}$ against three characteristic energy estimators for accreting systems, i.e., the Eddington luminosity, the accretion disk luminosity, and the power of the Blandford-Znajek process, and find that $P_{j,\min}$ is about 2 orders of magnitude higher than all energetic estimators for the majority of our sample. The derived magnetic field strengths in the emission region require either large amplification of the jet's magnetic field (factor of 30) or place the $γ$-ray production site at sub-pc scales. The expected neutrino emission peaks at $\sim 0.1-10$ EeV, with typical peak neutrino fluxes $\sim 10^{-4}$ times lower than the peak $γ$-ray fluxes. We conclude that if relativistic hadrons are present in blazar jets, they can only produce a radiatively subdominant component of the overall spectral energy distribution of the blazar's steady emission.
