Hostname: page-component-5c6d5d7d68-wtssw Total loading time: 0 Render date: 2024-08-19T01:41:21.610Z Has data issue: false hasContentIssue false
  • English
  • Français

Gamma Rays from Cosmic Rays

Published online by Cambridge University Press:  14 August 2015

A. W. Wolfendale
A. W. Wolfendale*
Affiliation:
Physics Department, University of Durham, U.K.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

It is shown that there is evidence favouring molecular clouds being sources of γ-rays, the fluxes being consistent with expectation for ambient cosmic rays interacting with the gas in the clouds for the clouds considered. An estimate is made of the fraction of the apparently diffuse γ-ray flux which comes from cosmic ray interactions in the I.S.M. as distinct from unresolved discrete sources. Finally, an examination is made of the possibility of gradients of cosmic ray intensity in the Galaxy.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 94: Origin of Cosmic Rays , 1981 , pp. 309 - 319
Copyright
Copyright © Reidel 1981 

References

Black, J.H., and Fazio, G.G.L. 1973, Ap. J. Lett. 185, L7.CrossRefGoogle Scholar
Blitz, L., 1977, Proc. Gregynog Workshop on Giant Molecular Clouds, Ed. Solomon, P. Google Scholar
Cong, H., 1978, , Columbia University (NASA Technical Memorandum 79590).Google Scholar
Daltabuit, E., and Meyer, S., 1972, Astr. Astrophys., 20, 415.Google Scholar
Dodds, D., Strong, A.W., and Wolfendale, A.W., 1975, Mon. Not. Roy. Astr. Soc. 171, 569.Google Scholar
Few, R.W., 1979, Mon. Not. Roy. Astr. Soc. 187, 161.CrossRefGoogle Scholar
Fichtel, C.E., Hartman, R.C., Kniffen, D.A., Thompson, D.J., Ogelman, H.B., Turner, T., and Ozel, M.E., 1978a, NASA Tech. Mem. 79650.Google Scholar
Fichtel, C.E., Simpson, G.A., and Thompson, D.J., 1978b, Ap. J., 222, 833.CrossRefGoogle Scholar
Gordon, M.A., and Burton, W.B., 1976, Ap. J., 208, 346.Google Scholar
Hartman, R.C., Kniffen, D.A., Thompson, D.J., Fichtel, C.E., Ogelman, H.B., Turner, T., and Ozel, M.E., 1979, Ap. J. 230, 597.CrossRefGoogle Scholar
Heiles, C., 1975, Astron. Astrophys. Suppl. 20, 37.Google Scholar
Issa, M.R., Strong, A.W., and Wolfendale, A.W., 1980a (in the press).Google Scholar
Issa, M.R., Strong, A.W., and Wolfendale, A.W., 1980b (in the press).Google Scholar
Kiraly, , et al., 1979, Rivista del Nuovo Cimento, 2, 1.Google Scholar
Kodaira, K., 1974, Publ. Astr. Soc. Japan, 26, 255.Google Scholar
Mayer-Hasselwander, H.A. et al., 1980, Proc. 9th Texas Symp. “Annals of the New York Academy of Sciences” (in the press).Google Scholar
Lebrun, F., and Paul, J.A., 1979, Proc. 16th Int. Cosmic Ray Conf., Kyoto, 12, 13.Google Scholar
Pinkau, K., 1975 “Origin of Cosmic Rays”, Ed. Osborne, J.L. and Wolfendale, A.W. (D. Reidel Publ. Co.) 335.Google Scholar
Protheroe, R.J., Strong, A.W., and Wolfendale, A.W., 1979a, Mon. Not. Roy. Astr. Soc., 188, 863.Google Scholar
Protheroe, R.J., Strong, A.W., Wolfendale, A.W., and Kiraly, P., 1979b, Nature, 277, 542.Google Scholar
Riley, P.A., and Wolfendale, A.W., 1980 (in the press).Google Scholar
Savage, B.D., Bohlin, R.C., Drake, J.F., and Budich, W., 1977, Ap, J. 216, 291.Google Scholar
Scoville, N.Z., Solomon, P.M., and Jefferts, K.B., 1974, Ap. J., 187, L63.Google Scholar
Stark, A.A., and Blitz, L., 1978, Ap. J., 225, L15.Google Scholar
Stecker, F.W., 1971, Cosmic Gamma Rays, Mono. Book Co., Baltimore.Google Scholar
Strong, A.W., and Worrall, D.M., 1976, J. Phys. A., 9, 823.Google Scholar
Weaver, H., and Williams, D.R.W., 1973, Astron. & Astrophys. Suppl. 8, 1.Google Scholar
Wills, R.D. et al., 1980, Non Solar Gamma Rays (COSPAR) Ed. Cowsik, R. and Wills, R.D., Pergamon Press, 43.Google Scholar
Wolfendale, A.W., and Worrall, D.M., 1977, Astron. Astrophys. 60, 165 Google Scholar