Abstract
The cosmic-ray spectrum has an intensity enhancement in the energy range 1014–1016 eV per nucleus1 (Fig. 1). Recent observations of heavy cosmic rays in this energy range indicate that the Ca/Fe ratio may be as large as 10 times the solar value. We suggest that pulsars in type-II supernova remnants are the origin of this component of the cosmic-ray spectrum.
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References
Hillas, A. M. A. Rev. Astr. Astrophys. 22, 425–444 (1984).
Karakula, S., Osborne, J. L. & Wdowczyk, J. J. Phys. A7, 437–443 (1974).
Strong, A. W., Wdowczyk, J. & Wolfendale, A. W. J. Phys. A7, 1489–1496 (1974).
Sitte, K. Nuovo Cimento 7B, 110–118 (1972).
Ostriker, J. P. & Gunn, J. E. Astrophys. J. 157, 1395–1417 (1969).
Gunn, J. E. & Ostriker, J. P. Phys. Rev. Lett. 22, 728–731 (1969).
Linsley, J. in Proc. 18th int. Cosmic Ray Conf. Vol. 12, 135–191 (Tata Institute: Bombay, 1983).
Acharya, A. S., Rao, M. V. S., Silvaprasad, K. & Sreekantan, B. V. Proc. 19th int. Cosmic Ray Conf. Vol. 2, 226–229 (NASA: Washington, DC, 1985).
Sood, R. K. Nature 301, 44–46 (1983).
Goodman, J. A. et al. Phys. Rev. D26, 1043–1060 (1982).
Thornton, G. & Clay, R. Phys. Rev. Lett. 43, 1622–1625 (1979).
Andam, A. A. et al. Phys. Rev. D26, 23–26 (1982).
Burnett, T. H. et al. Phys. Rev. Lett. 51, 1010–1013 (1983).
Burnett, T. H. et al. in Cosmic Rays and Particle Physics (eds Ohsawa, A. & Yuda, T.) 468–479 (University of Tokyo, 1984).
Burnett, T. H. et al. Proc. 19th int. Cosmic Ray Conf. Vol. 6, 164–167 (and also Vol 2, 48–51) (NASA Publ. No. 2376, Washington, DC, 1985).
Grigorov, N. L. et al. Proc. 12th int. Cosmic Ray Conf. Vol. 5, 1746–1751 (University of Tasmania, Hobart, 1971).
Jones, M. D. et al. Proc. 19th int. Cosmic Ray Conf. Vol. 2, 28–31 (NASA Publ. No. 2376, Washington, DC, 1985).
Trimble, V., Rev. mod. Phys. 54, 1183–1224 (1982).
Nomoto, K. in Problems of Collapse and Numerical Relativity (eds Bancel, D. & Signore, M.) 89–116 (Reidel, Dordrecht, 1984).
Nomoto, K. Ann. N. Y. Acad. Sci (in the press).
Miyaji, S., Nomoto, K., Yokoi, K. & Sugimoto, D. Publ. astr. Soc. Jap 32, 303–329 (1980).
Hillebrandt, W., Nomoto, K. & Wolff, R. G. Astr. Astrophys. 133, 175–184 (1984).
Hartmann, D., Woosley, S. E. & El Eid, M. F. Astrophys. J. 297, 837–845 (1985).
Baron, E., Cooperstein, & Kahana, S. Phys. Rev. Lett. 55, 126–129 (1985).
Wilson, J. R., Mayle, R., Woosley, S. E. & Weaver, T. A. Ann. N. Y. Acad. Sci. (in the press).
Woosley, S. E. & Weaver, T. A. in Nucleosynthesis and Its Implications On Nuclear and Particle Physics, (eds Audouze, J. & Thanh Van, T.) (Reidel, Dordrecht, in the press).
Lagage, P. O. & Cesarsky, C. J. Astr. Astrophys. 125, 249–257 (1983).
Peters, B. & Westergaard, N. J. Astrophys. Space Sci. 48, 21–46 (1977).
Takahashi, Y. in Physics in Collision 5 (ed. Montanet, L.) (Editions Frontieres, Gif sur Yvette, in the press).
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Takahashi, Y., Miyaji, S., Parnell, T. et al. Enhancement of high-energy cosmic-ray spectrum by type-II supernovae. Nature 321, 839–841 (1986). https://doi.org/10.1038/321839a0
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DOI: https://doi.org/10.1038/321839a0
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