Chinese Physics C > 1981, Vol. 5 > Issue(4): 477-483

PROPAGATION OF COSMIC RAY ELECTRONS IN THE GALAXY

ZHANG HE-QI

Purple Mountain Observatory, Academia Sinica

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Abstract：
In this paper, a non-steady state solution for the propagation equation is obtained by means of the Green function. We consider several models of the source function in the calculation. The electron spectrum derived from these kinds of source function shows very different properties. Our calculations suggest that the cosmic ray is not in an equilibrium state. It is also pointed out that the cosmic ray can not be considered as the remnants origining from a dramatic astrophysical process in primordial period when our Galaxy began to form. Both the results given by the continuous ejection model and the piont-source model with impulsive ejection can be used to account for the constant slope of the electron spectrum. Perhapes the Pulsar, or rotating neutron star, and the Supernowt may be served as the most likly considerates for the sosmic ray source.

References

[1]

R.R. Daniel, 8. A.. Stephene, Space Sci. Rev., 10(1970), 599.[2] L.Gratton, Astrophys. and Space Sci., 16(1972), 81.[3] C. C. Cheng, Space Sci. Rev., 13(1972), 3.[4] P. Meyer, Origin of Cosmic Rays, ed, by J. L. Osborne et al., D. Reidel Publishing Company,Dordrecht-Holland/Boston-U.9.A. (1974), 233.[5] P. M. worse and H. Feshback, Methods of Theoretical Physics, MeGlraw-Hill Book Co, (1953),857.[6] K. C. Anand et al., Astrophs, aid Space Sci., 36(1975), 169.[7] C. A. Meegan, J. A. Fa.rl, 14th Intern. Cosmic Ray Conf. 1(1975), 419.[8] E. N. Parker, Interplanetary Dynamical Processes, John Wikey and Sons Ins., New York-London(1963), 210.

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ZHANG HE-QI. PROPAGATION OF COSMIC RAY ELECTRONS IN THE GALAXY[J]. Chinese Physics C, 1981, 5(4): 477-483.

ZHANG HE-QI. PROPAGATION OF COSMIC RAY ELECTRONS IN THE GALAXY[J]. Chinese Physics C, 1981, 5(4): 477-483. shu

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Received: 1979-12-03
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

PROPAGATION OF COSMIC RAY ELECTRONS IN THE GALAXY

ZHANG HE-QI

Purple Mountain Observatory, Academia Sinica

Received Date:1979-12-03
Accepted Date:1900-01-01
Available Online:1981-08-05

Abstract:In this paper, a non-steady state solution for the propagation equation is obtained by means of the Green function. We consider several models of the source function in the calculation. The electron spectrum derived from these kinds of source function shows very different properties. Our calculations suggest that the cosmic ray is not in an equilibrium state. It is also pointed out that the cosmic ray can not be considered as the remnants origining from a dramatic astrophysical process in primordial period when our Galaxy began to form. Both the results given by the continuous ejection model and the piont-source model with impulsive ejection can be used to account for the constant slope of the electron spectrum. Perhapes the Pulsar, or rotating neutron star, and the Supernowt may be served as the most likly considerates for the sosmic ray source.