On the Cosmic Ray Sources


The cosmic ray energy spectrum is calculated assuming that cosmic rays are generated by astrophysical objects provided by magnetospheres with a dipole magnetic field. With simple geometric considerations, the energy spectrum E-2.5 is obtained, independently on the particle species.


Cosmic Rays

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Pizzella, G. (2014) On the Cosmic Ray Sources. Journal of Modern Physics, 5, 244-247. doi: 10.4236/jmp.2014.55034.

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The authors declare no conflicts of interest.


[1] Gold, T. (1969) Nature, 221, 25. http://dx.doi.org/10.1038/221025a0
[2] Fermi, E. (1949) Physical Review, 75, 1169. http://dx.doi.org/10.1103/PhysRev.75.1169
[3] Pizzella, G. (1970) Nature, 226, 434. http://dx.doi.org/10.1038/226434a0
[4] Reeves, G.D., et al. (2013) Science, 341, 991-994. http://dx.doi.org/10.1126/science.1237743
[5] Teegarden, B.T., McDonald, F.B., Trainor, J.H., Webber, W.R. and Roelof, E.C. (1974) Journal of Geophysical Research, 79, 3615-3622.
[6] The Pierre Auger Collaboration (2007) Science, 318, 938.
[7] Alfven, H. and Falthammar, C.G. (1963) Cosmic Electrodynamics. Clarendom Press, Oxford.
[8] Zatsepin, V.I. and Sokolskaya, N.V. (2008) Astronomy & Astrophysics, 5108.
[9] Anchordoqui, L.A., Dova, M.T., Epele, L.N. and Swain, J.D. (1998) Physical Review D, 57, 7103-7107.

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