Energy Spectra of Abundant Cosmic-ray Nuclei in Sources, According to the ATIC Experiment

Panov, A.D.; Sokolskaya, N.V.; Zatsepin, V.I.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 июня 2017 г.

Авторы: Panov A.D., Sokolskaya N.V., Zatsepin V.I.
Журнал: Astrophysical Journal
Том: 837
Год издания: 2017
Издательство: University of Chicago Press
Местоположение издательства: United States
Первая страница: 77
DOI: 10.3847/1538-4357/aa6041
Аннотация: One of the main results of the ATIC (Advanced Thin Ionization Calorimeter) experiment is a collection of energy spectra of abundant cosmic-ray nuclei: protons, He, C, O, Ne, Mg, Si, and Fe measured in terms of energy per particle in the energy range from 50 GeV to tens of teraelectronvolts. In this paper, the ATIC energy spectra of abundant primary nuclei are back-propagated to the spectra in sources in terms of magnetic rigidity using a leaky- box approximation of three different GALPROP-based diffusion models of propagation that fit the latest B/C data of the AMS-02 experiment. It is shown that the results of a comparison of the slopes of the spectra in sources are weakly model dependent; therefore the differences of spectral indices are reliable data. A regular growth of the steepness of spectra in sources in the range of magnetic rigidity of 50–1350GV is found for a charge range from helium to iron. This conclusion is statistically reliable with significance better than 3.2 standard deviations. The results are discussed and compared to the data of other modern experiments.
Добавил в систему: Панов Александр Дмитриевич

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Energy Spectra of Abundant Cosmic-ray Nuclei in Sources, According to the ATIC Experimentстатья

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