论文标题
银河系的hadronic pevatron在哪里?
Where are Milky Way's Hadronic PeVatrons?
论文作者
论文摘要
对银河系在TEV-PEV能量上的观察结果表明,Hadronic Cosmic射线的明亮弥散通量以及伽马射线的明亮点源。如果伽玛射线源是HADRONIC COSMIC-RAY加速器,那么它们也必须是中微子来源。但是,尚未检测到中微子的来源。他们在哪里?我们引入了一种新的基于人群的方法,用于探测银河系的HADRONIC PEVATRON,要求在宇宙射线,伽马射线和中微子上进行分散和点源PEV-Range数据之间的一致性。对于pevatrons,允许两个极端情况:(1)HADRONIC宇宙射线加速器和伽马射线源是相同的对象,因此存在明亮的中微子来源,并且改进的望远镜可以检测到它们,而不是(2)Hadronic-Ray加速器和gamma-ray courine cource and Suiltrine nistract and Suilt courtion nistion shan nistrice solect and and Inlince solection solecisr sanic solion san an an an and Inlance soly and and and and and and and and and and and and and and and and Inlation。如果HADRONON加速器具有足够薄的色谱柱密度,则可以使用后一种情况。我们量化了当前的限制和未来的前景,展示了如何揭示Hadronic Pevatrons的性质。
Observations of the Milky Way at TeV-PeV energies reveal a bright diffuse flux of hadronic cosmic rays and also bright point sources of gamma rays. If the gamma-ray sources are hadronic cosmic-ray accelerators, then they must also be neutrino sources. However, no neutrino sources have been detected. Where are they? We introduce a new population-based approach to probe Milky Way hadronic PeVatrons, demanding consistency between diffuse and point-source PeV-range data on cosmic rays, gamma rays, and neutrinos. For the PeVatrons, two extreme scenarios are allowed: (1) the hadronic cosmic-ray accelerators and the gamma-ray sources are the same objects, so that bright neutrino sources exist and improved telescopes can detect them, versus (2) the hadronic cosmic-ray accelerators and the gamma-ray sources are distinct, so that there are no detectable neutrino sources. The latter case is possible if hadronic accelerators have sufficiently thin column densities. We quantify present constraints and future prospects, showing how to reveal the nature of the hadronic PeVatrons.