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arXiv 1707.02504astro-ph.HE
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cosmic ray通量的光谱特征

Spectral features in the cosmic ray fluxes

Paolo Lipari

摘要:

宇宙线能量分布包含光谱特征,即光谱斜率快速变化的狭窄能量区域。这些特征的识别和研究对于理解形成光谱的加速和传播的天体物理机制具有重要意义。在第一近似中,光谱特征通常被描述为斜率的不连续变化,然而非常有价值的信息也包含在其宽度中,即光谱指数变化发展的能量对数间隔的长度。在这项工作中,我们将讨论定义和参数化光谱特征宽度的最佳方法,并讨论一些最突出的已知结构。

英文摘要:

The cosmic ray energy distributions contain spectral features, that is narrow energy regions where the slope of the spectrum changes rapidly. The identification and study of these features is of great importance to understand the astrophysical mechanisms of acceleration and propagation that form the spectra. In first approximation a spectral feature in often described as a discontinuous change in slope, however very valuable information is also contained in its width, that is the length of the interval in logarithm of energy where the change in spectral index develops. In this work we discuss the best way to define and parametrize the width a spectral feature, and for illustration discuss some of the most prominent known structures.

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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