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arXiv 2210.09797astro-ph.HE
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低TeV光度喷流AGN中的强子核相互作用:对低态极高能gamma-ray发射的影响

Hadronuclear interactions in the jet of low TeV luminosity AGN: Implications for the low-state very-high-energy gamma-ray emission

Rui Xue, Ze-Rui Wang, Wei-Jian Li

摘要:

在对活动星系核喷流辐射机制的研究中,由于认为喷流中冷质子数密度不足,常常忽略了强子核相互作用。最近,我们以前的工作证明,pp相互作用在低TeV光度AGN,这有可能产生可检测的甚高能量(VHE)的排放,可能是重要的。在此基础上,利用单区pp模型研究了低TeV光度活动星系核的低能态准同时谱能量分布。我们的模拟结果表明,在pp相互作用中产生的伽马射线可以解释所观察到的TeV谱,并有贡献的更高的能带,可以检测到的大型高海拔空气簇射天文台(LHAASO)。在样本中,我们认为M87,Mrk 421和Mrk 501是LHAASO在不久的将来最有可能探测到的天体。VHE排放的其他可能的来源也进行了简要的讨论。

英文摘要:

In the study of radiation mechanisms of AGNs' jets, hadronuclear (pp) interactions are commonly neglected, because the number density of cold protons in the jet is considered insufficient. Very recently, our previous work proves that pp interactions in the low TeV luminosity AGNs, which have potential to generate detectable very-high-energy (VHE) emission, could be important. Based on this, the one-zone pp model is employed to study low-state quasi-simultaneous spectral energy distributions of a sample of low TeV luminosity AGNs in this work. Our modeling results show that the gamma-ray generated in pp interactions can explain the observed TeV spectra and has contribution to higher energy band that could be detected by the Large High Altitude Air Shower Observatory (LHAASO). In the sample, we suggest that M 87, Mrk 421 and Mrk 501 are the most likely objects to be detected by LHAASO in the near future. Other possible origins of VHE emission are also briefly discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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