Abstract
Recent experiments using extensive air shower techniques1–5 have given evidence for the presence of significant fluxes of cosmic γ rays, in the energy range 1015–1016 eV, from specific cosmic sources. We argue here that the flux from these sources, and others as yet unresolved, is probably sufficient to allow the explanation of a number of previously puzzling features of the cosmic radiation, in particular the way in which the amplitude and phase of the anisotropy of cosmic rays varies with energy. It is possible that the effects of cosmic γ rays will be detectable at energies as high as 1017 eV.
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References
Dzikowski, T. et al. 17th Int. Cosmic Ray Conf., Paris, Vol. 1, 8 (1981); J. Phys. G. 9, 459–465 (1983).
Boone, J. et al. Univ. Utah, preprint UUHEP 83/2 (1983).
Stamenov, J. N., Ushev, S. Z., Nikolsky, S. I. & Yakovlev, V. I. 18th Int. Cosmic Ray Conf., Bangalore 6, 54–57 (1982).
Samorski, M. & Stamm, W. Astrophys. J. Lett. 268, L17–L21 (1983).
Samorski, M. & Stamm, W. 18th Int. Cosmic Ray Conf., Bangalore (in the press).
Mayer-Hasselwander, H. A. et al. Astr. Astrophys. 105, 164–175 (1982).
Arnaud, K., Li, T. P., Riley, P. A. & Wolfendale, A. W. Mon. Not. R. astr. Soc. 201, 745–758 (1982).
Hermsen, W. thesis, Univ. Leiden (1980); Phil. Trans. R. Soc. A301, 519–521 (1981).
Houston, B. P. & Wolfendale, A. W. Irish astr. J. 15, 181–198 (1982).
Gibson, A. I. et al. Nature 296, 833–835 (1982).
Hartman, R. C. et al. The Structure and Content of the Galaxy and Galactic Gamma Rays, 12–22 (Goddard Space Flight Center, X-662-76-154, 1976).
Gawin, J., Hibner, J., Wdowczyk, J., Zawadzki, A., & Maze, R. 9th Int. Cosmic Ray Conf., London, Vol. 2, 639–641 (1965).
Hara, T. et al. 17th Int. Cosmic Ray Conf., Paris, Vol. 9, 179–182 (1981).
Linsley, J. & Watson, A. A. 15th Int. Cosmic Ray Conf., Plovdiv, Vol. 12, 203–208 (1977).
Kiraly, P. et al. Riv. nuovo Cim. 2, 1–46 (1979).
Alexeenko, V. V., Chudakov, A. E., Gulieva, E. N. & Sborshikov, V. G. 17th Int. Cosmic Ray Conf., Paris, Vol. 2, 146–150 (1981).
Gombosi, T. et al. 15th Int. Cosmic Ray Conf., Plovdiv, Vol. 11, 109–113 (1977).
Sakakibara, S. et al. Int. Cosmic Ray Symp. on High Energy Cosmic Ray Modulation, Tokyo, 316–321 (1976).
Anda, R. et al., 17th Int. Cosmic Ray Conf., Paris, Vol. 2, 164–170 (1981).
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Wdowczyk, J., Wolfendale, A. Cosmic γ rays and cosmic-ray particles. Nature 305, 609–610 (1983). https://doi.org/10.1038/305609a0
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DOI: https://doi.org/10.1038/305609a0
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