论文标题

“孤儿”中微子耀斑的两个区域大辐射模型

A two-zone blazar radiation model for "orphan" neutrino flares

论文作者

Xue, Rui, Liu, Ruo-Yu, Wang, Ze-Rui, Ding, Nan, Wang, Xiang-Yu

论文摘要

在这项工作中,我们调查了与Blazar TXS 0506+056相关的2014-2015中微子耀斑,以及最近发现的Muon Neutmino事件Icecube-200107A在空间上与Blazar 4fgl J0955.1+3551的空间相吻合,在Bllaz的框架下,Bllab of Blass of Bllab bllab bllab bllab bllab bllob the被调用。这两个消息来源共同的一个有趣的特征是,在中微子检测期间没有发现GEV伽马射线活性的证据,这可能意味着中微子生产区域中GEV Gamma射线的不透明度很大。在我们的模型中,连续的颗粒加速/注射发生在射流基底的内斑点中,在该底座上,超质量黑洞的热X射线电晕为有效的中微子产生和强烈的GEV GAMMA射线吸收提供了目标光子场。我们表明,该模型可以自愿解释大型参数空间中两种大麻的中微子发射。同时,外BLOB中的耗散过程负责两个来源的同时多波长发射。与先前对TXS 0506+056的研究一致,并且在内部斑点中,诱导的电磁级联反应的强烈MEV发射可以使用我们的模型中的中微子耀斑伴随中微子耀斑来测试未来下一代MEV Gamma-ray检测器的模型。

In this work, we investigate the 2014-2015 neutrino flare associated with the blazar TXS 0506+056 and a recently discovered muon neutrino event IceCube-200107A in spatial coincidence with the blazar 4FGL J0955.1+3551, under the framework of a two-zone radiation model of blazars where an inner/outer blob close to/far from the supermassive black hole are invoked. An interesting feature that the two sources share in common is that no evidence of GeV gamma-ray activity is found during the neutrino detection period, probably implying a large opacity for GeV gamma rays in the neutrino production region. In our model, continuous particle acceleration/injection takes place in the inner blob at the jet base, where the hot X-ray corona of the supermassive black hole provides target photon fields for efficient neutrino production and strong GeV gamma-ray absorption. We show that this model can self-consistently interpret the neutrino emission from both two blazars in a large parameter space. In the meantime, the dissipation processes in outer blob are responsible for the simultaneous multi-wavelength emission of both sources. In agreement with previous studies of TXS 0506+056 and, an intense MeV emission from the induced electromagnetic cascade in the inner blob is robustly expected to accompany the neutrino flare in our model could be used to test the model with the next-generation MeV gamma-ray detector in the future.

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