标题： 逆康普顿和星系外弥散伽马射线辐射的组成部分 显示英文标题

标题： The Inverse-Compton And Extragalactic Components Of The Diffuse Gamma-Ray Emission

摘要： 我们展示了基于高银道面纬度区域辐射分析的高能伽马射线的逆康普顿和河外成分光谱（$\vert$b$\vert$ $\geq$ $30\deg$ ）。 我们将伽马射线强度与一个模型相关联，该模型由各向同性分量、与408 MHz同步辐射成正比的分量以及与原子氢（HI）柱密度成正比的分量组成，在八个银河象限中具有不同的发射率。 与HI柱密度相关的伽马射线光谱表明，此分量源自宇宙射线/物质相互作用。 产生408 MHz射电连续辐射的宇宙射线电子也通过与星际光子的逆康普顿相互作用产生伽马射线。 通过将伽马射线与408 MHz连续辐射关联起来，我们测量了IC辐射的光谱和绝对强度。 各向同性分量使我们能够获得河外伽马射线的光谱和强度。 我们讨论了对河外光谱的解释。 显示英文摘要

摘要： We present spectra of the inverse-Compton and extragalactic components of the high-energy gamma-radiation based on an analysis of the emission at high galactic latitudes ($\vert$b$\vert$ $\geq$ $30\deg$). We correlate the gamma-ray intensity with a model consisting of an isotropic component, a component proportional to the 408 MHz synchrotron radiation, and a component proportional to atomic hydrogen (H I) column density with different emissivities in eight galactic octants. The spectrum of gamma-radiation that is correlated with the H I column density indicates that this component originates in cosmic-ray/matter interactions. The cosmic-ray electrons which produce the 408 MHz radio continuum emission also produce gamma-radiation through inverse-Compton interactions with interstellar photons. By correlating the gamma-radiation with the 408 MHz continuum, we measure the spectrum and absolute intensity of the IC emission. The isotropic component gives us the spectrum and intensity of the extragalactic gamma-radiation. We discuss interpretation of the extragalactic spectrum.