Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-16T15:23:44.956Z Has data issue: false hasContentIssue false
  • English
  • Français

9. Waves in a hot ionized gas in a magnetic field

Published online by Cambridge University Press:  18 July 2016

Ernst åström
Ernst åström*
Affiliation:
Royal Institute of Technology, Stockholm, Sweden

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.

The electromagnetic state of vacuum is characterized by two vector quantities, namely E and B. They are related to current and charge density by the equations Sometimes it is suitable and possible to introduce two new quantities, H and D, so defined that the equations (1) and (2) appear in the new form (Strattonm) and with a linear relation between E and D and also between B and H. This formalism is common when dealing with fluid and solid media, and has also been introduced to ionized media of zero temperature (Nichols and Schelleng[2], Alfven[3], p. 85, Astrom[4]). Here we shall say a few words about this matter for ionized media of non-zero temperature. In this connexion we also get an opportunity to discuss the meaning of the conception of diamagnetism.

Type
Part I: Magneto-Hydrodynamics
Information
Symposium - International Astronomical Union , Volume 6: Electromagnetic Phenomena in Cosmical Physics , 1958 , pp. 81 - 86
Copyright
Copyright © Cambridge University Press 1958 

References

1. Stratton, J. A. Electromagnetic Theory (New York, 1941), p. 2.Google Scholar
2. Nichols, H. W. and Schelleng, J. C. Bell Syst. Tech. J. 4, 215, 1925.CrossRefGoogle Scholar
3. Alfvén, H. Cosmical Electrodynamics (Oxford University Press, 1950).Google Scholar
4. Åström, E. Ark. Fys. 2, 443, 1950.Google Scholar
5. Cowling, T. G. Mon. Not. R. Astr. Soc. 90, 140, 1929 and 92, 407, 1932.CrossRefGoogle Scholar
6. Spitzer, L. Physics of Fully Ionized Gases , Interscience Publishers, Inc. (New York, 1956).Google Scholar
7. Davis, Leverett Jr. Phys. Rev. 101, 351, 1956.CrossRefGoogle Scholar
8. Herlofson, N. Nature, Lond. 165, 1020, 1950.CrossRefGoogle Scholar
9. van de Hulst, H. C. Problems of cosmical aerodynamics , Central Air Documents Office, Dayton, Ohio, 1951.Google Scholar
10. Bohr, N. Studier over metallernes elektronteori , Dissertation, Copenhagen, 1911.Google Scholar
11. Spitzer, L. Jr. Astrophys. J. 116, 299, 1952.CrossRefGoogle Scholar