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Cosmic-Ray Energy Changes

Published online by Cambridge University Press:  25 April 2016

L. J. Gleeson  and
G. M. Webb
L. J. Gleeson
Affiliation:
Monash University, Clayton
G. M. Webb
Affiliation:
University of Tasmania
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Extract

The purpose of this paper is to provide a new expression for < ṗ > the average time-rate-of-change of momentum of cosmic-ray particles propagating in the interplanetary region. The expression derived replaces the previously used adiabatic deceleration formula and it is arrived at by a rearrangement and reinterpretation of the well known equation of transport for cosmic-rays. Thus, although we provide a new expression for < ṗ > we maintain the equation of transport and do not render invalid results for differential intensity and differential current density of cosmic-ray particles obtained by its solution (Jokipii 1971; Gleeson 1972).

Type
Cosmic Ray Astronomy
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 5 , September 1974 , pp. 297 - 299
Copyright
Copyright © Astronomical Society of Australia 1974

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References

Gleeson, L. J., Proc. Int. Conf. on Solar Terrestrial Physics, Calgary 1972 (University of Calgary), p. 79 (1973).Google Scholar
Gleeson, L. J., and Axford, W. I., Astrophys. J. (Lett.), 149, L115 (1967).Google Scholar
Jokipii, J. R., Rev. Geophys. Space Phys., 9, 27 (1971).CrossRefGoogle Scholar
Parker, E. N., Planet, Space Sci., 13, 9 (1965).Google Scholar
Webb, G. M., and Gleeson, L. J., Conference Papers, 13th Int. Conf. on Cosmic Rays, Denver, 1973 (University of Denver), (1973) (In press).Google Scholar