Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-29T08:13:26.727Z Has data issue: false hasContentIssue false
  • English
  • Français

Cosmic-ray evidence for a halo

Published online by Cambridge University Press:  14 August 2015

V. L. Ginzburg
V. L. Ginzburg*
Affiliation:
P.N. Lebedev Physical Institute, Acad. Sci. USSR, Moscow, USSR

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.

Cosmic rays were discovered in 1912, but it was only about forty years later that they were found to play an important role in astronomy. Firstly, cosmic rays (including the electron component) are an important source of astronomical information, namely the cosmic synchrotron radiation. Secondly, cosmic rays are essential as energetic and dynamical factors in the galaxy and also as a source of heating and transformation of the interstellar gas composition. Suffice it to remember, for example, that near the solar system the cosmic ray energy density is about the same as the thermal energy of the interstellar gas, and the cosmic ray pressure is likewise about the same as the interstellar gas pressure. Thus, there is every reason to believe that galaxies do not consist of stars and gas only, but of cosmic rays as well.

Type
VIII. THE SPHEROIDAL COMPONENT
Information
Symposium - International Astronomical Union , Volume 84: The Large-Scale Characteristics of the Galaxy , 1979 , pp. 485 - 490
Copyright
Copyright © Reidel 1979 

References

1. 15th Int. Cosmic Ray Conf., Conf. Papers, Plovdiv, Bulgaria, 1977.Google Scholar
2. Ginzburg, V.L. and Ptuskin, V.S.: 1976, Rev. Mod. Phys. 48, p. 161; 1976, Sov. Phys. Uspekhi 18, p. 931.Google Scholar
3. Ginzburg, V.L.: 1978, Uspekhi Fiz. Nauk 124, p. 307; Engl. transl. Sov. Phys. Uspekhi (1978).CrossRefGoogle Scholar
4. Burbidge, G.R.: 1975, Phil. Trans. Roy. Soc. A. 277, p. 481.Google Scholar
5. Ginzburg, V.L. and Syrovatskii, S.I.: 1964, Origin of Cosmic Rays , Pergamon Press, Oxford.Google Scholar
6. Ginzburg, V.L. and Syrovatskii, S.I.: 1967, IAU Symp. No. 31, (ed. vanWoerden, H.), Academic Press, London, p. 411.Google Scholar
7. Ginzburg, V.L.: 1975, Phil. Trans. Roy. Soc. A. 277, p. 463.Google Scholar
8. Strong, A.W., Wolfendale, A.W., Bennett, K. and Wills, R.D.: 1977, Proc. 12th ESLAB Symp. on Astron., Frascati, Italy, p. 167.Google Scholar
9. Garcia-Munoz, M., Mason, G.M. and Simpson, J.A.: 1977, Ap. J. 217, p. 859.CrossRefGoogle Scholar
10. Pikelner, S.B.: 1953, Doklady (C.R.) Akad. Nauk USSR 88, p. 229.Google Scholar
11. Ekers, R.D. and Sancisi, R.: 1977, Astron. and Ap. 54, p. 973.Google Scholar
12. Wielebinski, R. and von Kapherr, A.: 1977, Astron. and Ap. 59, L17.Google Scholar
13. Allen, R.J., Baldwin, J.E. and Sancisi, R., 1978: Astron. and Ap. 62, p. 397.Google Scholar