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arXiv 1908.04862astro-ph.HE
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用IceCube探测硬X射线源的中微子辐射

Searching for neutrino emission from hard X-ray sources with IceCube

Marcos Santander

摘要:

IceCube中微子天文台是南极一个10公里长的粒子探测器,它于2013年首次宣布发现TeV-PeV范围内的高能中微子天体物理通量,随后在2017年检测到与闪烁的伽马射线耀变体TXS 0506+056在时间和方向上相关的高能中微子事件。这一观测结果与2014-2015年的中微子探测档案相结合,为探测第一个高能天体物理中微子源提供了令人信服的证据。一个有希望的方法来检测额外的来源是关联中微子的检测与强子电磁签名被观察到的来源。如果耀变体是中微子的重要来源,那么在介子衰变中产生的高能伽马射线与中微子同时发生,可能会在耀变体喷流中的强光子场中级联,导致硬X射线到MeV伽马射线能量范围内的强烈发射。本文提出了从BAT AGN光谱巡天(BASS)的大样本硬X射线源中寻找中微子发射的计划。

英文摘要:

The IceCube neutrino observatory, a cubic-kilometer particle detector at the South Pole, first announced the discovery of an astrophysical flux of high-energy neutrinos in the TeV-PeV range in 2013, followed in 2017 by the detection of a high-energy neutrino event in temporal and directional correlation with the flaring gamma-ray blazar TXS 0506+056. This observation, combined with archival neutrino detections in 2014-2015, has provided compelling evidence for the detection of the first high-energy astrophysical neutrino source. A promising way of detecting additional sources is to correlate neutrino detections with sources where a hadronic electromagnetic signature is observed. If blazars are a significant source of neutrinos, the high-energy gamma rays produced in pionic decays in coincidence with the neutrinos may cascade in the strong photons fields present in blazar jets, leading to strong emission in the hard X-ray to MeV gamma-ray energy range. We here present plans for a search for neutrino emission from a large sample of hard X-ray sources from the BAT AGN Spectroscopic Survey (BASS).

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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