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Rigidity dependence of cosmic-ray escape length obtained from a comparison of proton and iron spectra in the energy range 3-3000 GeVстатья
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: 18 июля 2013 г.
- Авторы: Strelnikova O.N., Sveshnikova L.G.
- Журнал: Moscow University Physics Bulletin
- Том: 67
- Номер: 2
- Год издания: 2012
- Издательство: Allerton Press
- Местоположение издательства: New York, N.Y., United States
- Первая страница: 226
- Последняя страница: 229
- DOI: 10.3103/S0027134912020178
- Аннотация: A simple leaky-box model of cosmic-ray propagation in the Galaxy is quite suitable for analysis of cosmic-ray nuclei energy spectra and composition at energies under 1 GeV [1, 2]. Within this model the full information about the cosmic-ray propagation in the Galaxy is compressed into a single parameter, viz., escape length, X (e) , which characterizes the mean grams of matter that are passed by cosmic-rays from sources to the Earth. In this paper we analyze the worldwide data on proton and iron cosmic-ray spectra that have been collected in experiments and obtain the rigidity dependence of the escape length from the measured rigidity dependence of the proton/iron ratio. This agrees well with the one estimated by a standard manner from the secondary/primary nuclei ratio. However, at R > 300 GV the behavior of X (e) (R) distinctly changes, which can point to a change of the proton/iron ratio in cosmic-ray sources.
- Добавил в систему: Свешникова Любовь Георгиевна