A self-consistent leptonic-hadronic interpretation of the electromagnetic and neutrino emissions from blazar TXS 0506+056
A self-consistent leptonic-hadronic interpretation of the electromagnetic and neutrino emissions from blazar TXS 0506+056
复制标题
对耀变体 TXS 0506 056 电磁和中微子发射的自洽轻子强子解释
DOI：
10.1093/pasj/psz142
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发表时间：
2020
影响因子：
2.3
通讯作者：
Wang Jiancheng
中科院分区：
文献类型：
--
作者：
Cao Gang;Yang Chuyuan;Yang Jianping;Wang Jiancheng
Blaazar TXS 0506+056和中微子事件IceCube-170922A之间的潜在联系为研究高能光子和中微子之间可能的物理联系提供了一个独特的机会。我们用自洽的轻子-强子模型研究了blazar TXS0506+056的相关电磁和中微子发射，考虑了粒子的随机加速和所有相关的自洽辐射过程。基于质子-光子相互作用，用质子同步加速器和轻子-强子混合模型再现了blazar TXS0506+056的电磁和中微子能谱。结果表明，与质子同步加速器模型相比，轻子-强子混合模型能更好地解释blazar TXS0506+056的X射线和X射线能谱。此外，与质子同步加速器模型相比，轻子-强子混合模型的中微子能谱更接近于观测结果。我们认为，如果中微子事件IceCube-170922A与blazar TXS0506+056有关，则轻子-强子混合模型更受青睐。
The potential association between the blazar TXS 0506+056 and the neutrino event IceCube-170922A provides a unique opportunity to study the possible physical connection between high-energy photons and neutrinos. We explore the correlated electromagnetic and neutrino emissions of blazar TXS 0506+056 by a self-consistent leptonic–hadronic model, taking into account particle stochastic acceleration and all relevant radiative processes self-consistently. The electromagnetic and neutrino spectra of blazar TXS 0506+056 are reproduced by the proton synchrotron and hybrid leptonic–hadronic models based on the proton–photon interactions. It is found that the hybrid leptonic–hadronic model can be used to better explain the observed X-ray and-ray spectra of blazar TXS 0506+056 than the proton synchrotron model. Moreover, the predicted neutrino spectrum of the hybrid leptonic–hadronic model is closer to the observed one compared to the proton synchrotron model. We suggest that the hybrid leptonic–hadronic model is more favored if the neutrino event IceCube-170922A is associated with the blazar TXS 0506+056.