论文标题

测试具有X射线极化的Blazars的高能排放模型

Testing High-Energy Emission Models for Blazars with X-ray Polarimetry

论文作者

Peirson, Abel L., Liodakis, Ioannis, Romani, Roger W.

论文摘要

缓慢和望子发射过程均可能导致大弹性喷气发射。在Blazars的高能量排放组件中占主导地位仍然是一个悬而未决的问题。 X射线带中的一些中间同步加速器从其低能发射组件峰到高能发射组件使它们同时探测两个组件,并为新启动的成像X射线极化浏览器提供良好的目标。我们表征了三个这样的盛宴的光谱能量分布:cGrabs〜J0211+1051,TXS〜0506+056和S5〜0716+714,通过拟合多Zone多Zone极化Leptonic Jet模型来预测其X射线极化行为。我们发现,对于S5〜0716+714的300〜KS观察,可以显着检测到电子同步子主导的极化,并且在其耀斑状态下〜J0211+1051 〜J0211+1051,而甚至500〜KS的观察值也不可能测量同步自Plyppton pallallization。重要的是,在耀斑的状态下,对于我们最亮的ISP,S5〜0716+714,诸如质子同步器之类的非质子发射过程略有检测。需要改进的{\ it Ixpe}数据还原方法或下一代望远镜(例如{\ it Extp})以自信地测量SSC极化。

Both leptonic and hadronic emission processes may contribute to blazar jet emission; which dominates in blazars's high energy emission component remains an open question. Some intermediate synchrotron peaked blazars transition from their low to high energy emission components in the X-ray band making them excellent laboratories to probe both components simultaneously, and good targets for the newly launched Imaging X-ray Polarimetry Explorer. We characterize the spectral energy distributions for three such blazars: CGRaBS~J0211+1051, TXS~0506+056, and S5~0716+714, predicting their X-ray polarization behavior by fitting a multizone polarized leptonic jet model. We find that a significant detection of electron synchrotron dominated polarization is possible with a 300~ks observation for S5~0716+714 and CGRaBS~J0211+1051 in their flaring states, while even 500~ks observations are unlikely to measure synchrotron self-Compton polarization. Importantly, non-leptonic emission processes like proton synchrotron are marginally detectable for our brightest ISP, S5~0716+714, during a flaring state. Improved {\it IXPE} data reduction methods or next generation telescopes like {\it eXTP} are needed to confidently measure SSC polarization.

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