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首页> 外文期刊>Journal of Cosmology and Astroparticle Physics >A case for radio galaxies as the sources of IceCube's astrophysical neutrino flux
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A case for radio galaxies as the sources of IceCube's astrophysical neutrino flux

机译:射电星系作为IceCube天体中微子通量来源的案例

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We present an argument that radio galaxies (active galaxies with mis-aligned jets) are likely to be the primary sources of the high-energy astrophysical neutrinos observed by IceCube. In particular, if the gamma-ray emission observed from radio galaxies is generated through the interactions of cosmic-ray protons with gas, these interactions can also produce a population of neutrinos with a flux and spectral shape similar to that measured by IceCube. We present a simple physical model in which high-energy cosmic rays are con fined within the volumes of radio galaxies, where they interact with gas to generate the observed diffuse fluxes of neutrinos and gamma rays. In addition to simultaneously accounting for the observations of Fermi and IceCube, radio galaxies in this model also represent an attractive class of sources for the highest energy cosmic rays.
机译:我们提出一个论点,即射电星系(射流未对准的活跃星系)很可能是IceCube观测到的高能天体中微子的主要来源。特别是,如果从宇宙星系质子与气体的相互作用中产生了从射电星系观察到的伽马射线,这些相互作用还可以产生中微子,其通量和光谱形状与IceCube测量的相似。我们提出了一个简单的物理模型,其中高能宇宙射线被限制在射电星系的体积内,在那里它们与气体相互作用以产生观察到的中微子和伽马射线的扩散通量。除了同时考虑费米和冰立方的观测结果外,此模型中的射电星系还代表了一类吸引人的最高能量宇宙射线源。

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