论文标题

宇宙射线核的局部星际光谱与Galprop-Helmod框架的推断

Inference of the Local Interstellar Spectra of Cosmic Ray Nuclei Z<=28 with the GalProp-HelMod Framework

论文作者

Boschini, M. J., Della Torre, S., Gervasi, M., Grandi, D., Johannesson, G., La Vacca, G., Masi, N., Moskalenko, I. V., Pensotti, S., Porter, T. A., Quadrani, L., Rancoita, P. G., Rozza, D., Tacconi, M.

论文摘要

银河宇宙射线(CRS)的组成和光谱对于在各种环境和不同尺度上的高能过程的研究,对伽马射线和微波观测的解释,解散新现象的可能标志以及对我们当地的银河系社区的理解。自推出以来,AMS-02已经对抗蛋白质,电子,正上音和核的光谱进行了出色的质量测量:H-O,NE,NE,MG,SI。这些测量结果导致了许多突破,但是,直到任务后期,才期望较重的核,尤其是尤其是低增强核​​的光谱。同时,将已发布的AMS-02结果与来自Heo-3-C2的早期数据进行比较表明,Heao-3-C2数据可能受到无证件系统错误的影响。利用此类数据来补偿缺乏AMS-02测量结果可能导致重大错误。在本文中,我们表明,Heao-3-C2数据的一部分匹配可用的AMS-02测量值非常好,并且可以与Voyager 1和Ace-Cris数据一起使用,以预测AMS-02尚未发布的核的局部星际光谱(LIS)。我们还正在更新已经发布的LIS,以提供从1 MeV/核的H-NI的完整集合,从1 MeV/核能到〜100-500 TEV/核,从而覆盖了8-9个数量级的能量级。我们的计算采用了Galprop-Helmod框架,该框架被证明是推导Cr抗抗脂子,电子和核H-O的可靠工具。

Composition and spectra of Galactic cosmic rays (CRs) are vital for studies of high-energy processes in a variety of environments and on different scales, for interpretation of gamma-ray and microwave observations, disentangling possible signatures of new phenomena, and for understanding of our local Galactic neighborhood. Since its launch, AMS-02 has delivered outstanding quality measurements of the spectra of antiprotons, electrons, positrons, and nuclei: H-O, Ne, Mg, Si. These measurements resulted in a number of breakthroughs, however, spectra of heavier nuclei and especially low-abundance nuclei are not expected until later in the mission. Meanwhile, a comparison of published AMS-02 results with earlier data from HEAO-3-C2 indicate that HEAO-3-C2 data may be affected by undocumented systematic errors. Utilizing such data to compensate for the lack of AMS-02 measurements could result in significant errors. In this paper we show that a fraction of HEAO-3-C2 data match available AMS-02 measurements quite well and can be used together with Voyager 1 and ACE-CRIS data to make predictions for the local interstellar spectra (LIS) of nuclei that are not yet released by AMS-02. We are also updating our already published LIS to provide a complete set from H-Ni in the energy range from 1 MeV/nucleon to ~100-500 TeV/nucleon thus covering 8-9 orders of magnitude in energy. Our calculations employ the GalProp-HelMod framework that is proved to be a reliable tool in deriving the LIS of CR antiprotons, electrons, and nuclei H-O.

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