Hostname: page-component-8448b6f56d-tj2md Total loading time: 0 Render date: 2024-04-23T09:38:47.124Z Has data issue: false hasContentIssue false

Cosmic Rays and the Dynamic Balance in the Large Magellanic Cloud

Published online by Cambridge University Press:  12 April 2016

Carl E. Fichtel
Affiliation:
Goddard Space Flight Center, Greenbelt, Maryland
Mehmet E. Ozel
Affiliation:
Çukurova
Robert G. Stone
Affiliation:
Goddard Space Flight Center, Greenbelt, Maryland

Abstract

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.

Present and future measurement of the Large Magellanic Cloud (LMC) particularly in the radio and high energy gamma ray range offer the possibility of understanding the density and distribution of the cosmic rays in a galaxy other than our own and the role that they play in galactic dynamic balance. After a study of the consistency of the measurements and interpretation of the synchrotron radiation from our own galaxy, the cosmic ray distribution for the LMC is calculated under the assumption that the cosmic ray nucleon to electron ratio is the same and the relation to the magnetic fields are the same, although the implications of alternatives are discussed. It is seen that the cosmic ray density level appears to be similar to that in our own galaxy, but varying in position in a manner generally consistent with the concept of correlation with the matter on a broad scale.

Type
V. Long Term Future Issues
Copyright
Copyright © Kluwer 1990

References

Cohen, R.S., Dame, T. M, Garay, G., Montani, J., Rubio, M., and Thaddeus, P.: 1988, Astroph. J. (Letters) 331, L95 CrossRefGoogle Scholar
Fichtel, C.E., Ozel, M.E., and Stone, R., 1990, Cosmic Rays and the Dynamic Balance in the Large Magellanic Cloud, submitted for publication.CrossRefGoogle Scholar
Fisk, L.A.: 1971, J. Geophys. Res. 76, 221 CrossRefGoogle Scholar
Ginzburg, V.L. and Syrovatskii, S.I., 1964, The Origin of Cosmic Rays, New York: Macmillan.Google Scholar
Gleason, L.J. and Axford, W.I.: 1968, Astrophys. J. 154, 1011 CrossRefGoogle Scholar
Haynes, R.F., Klein, U., Wielebinski, R., Murray, J.D.: 1986, Astron. Astrophys. 159, 22 Google Scholar
Klein, U., Wielebinski, R., Haynes, R.F. Malin, D.F.: 1989, Astron. Astrophys. 211, 280 Google Scholar
Mathewson, D.J. and Ford, V.L., 1984, in Structure and Evolution of the Magellanic Clouds, eds.: van den Berg, S. and de Boer, K. S., Dordrecht:Reidel, 125.Google Scholar
Ozel, M.E. and Fichtel, C.E.: 1988, Astroph. J. 335, 135 Google Scholar
Parker, E.N.: 1965, Planet Space Sci. 13, 9 CrossRefGoogle Scholar
Simpson, J.A.: 1983, Ann. Rev. Nucl. Part. Sci. 33, 323381 CrossRefGoogle Scholar
Webber, W.R., 1983, in Composition and Origin of Cosmic Rays, ed.: Shapiro, M. M., Dordrecht: Reidel, 83100.Google Scholar