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arXiv 2006.01337astro-ph.HE
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用GalProp-HelMod框架推断Z<=28的Cosmic Ray核的星际局域谱

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

M. J. Boschini, S. Della Torre, M. Gervasi, D. Grandi, G. Johannesson, G. La Vacca, N. Masi, I. V. Moskalenko, S. Pensotti, T. A. Porter, L. Quadrani, P. G. Ran… 展开作者

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

摘要:

银河系宇宙射线(CR)的组成和光谱对于研究各种环境和不同尺度下的高能过程、解释伽马射线和微波观测、解开新现象的可能特征以及理解我们当地的银河系邻居至关重要。自推出以来,AMS-02已对反质子、电子、正电子和原子核(H-O、Ne、Mg、Si)的光谱进行了出色的质量测量。这些测量导致了一些突破,然而,较重的核,特别是低丰度核的光谱预计要到任务后期才能得到。同时,将AMS-02的公布结果与HEAO-3-C2的早期数据进行比较,表明HEAO-3-C2数据可能受到未记录的系统误差的影响。利用这些数据来弥补AMS-02测量数据的不足可能会导致重大错误。在本文中,我们表明,HEAO-3-C2数据的一部分匹配AMS-02测量相当不错,可以与旅行者1号和ACE-CRIS数据一起使用,以预测尚未释放的原子核的局部星际光谱(LIS)。我们还更新了我们已经发表的LIS,以提供能量范围从1 MeV/核子到~100-500 TeV/核子的H-Ni的完整集合,从而覆盖能量的8-9个数量级。我们的计算采用GalProp-HelMod框架,该框架被证明是推导CR反质子、电子和核H-O的LIS的可靠工具。

英文摘要:

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.

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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