Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-09-22
AIP Conf. Proc. 410, Fourth Compton Symposium, ed. C.D.Dermer, M.S.Strickman, & J.D.Kurfess (NY: AIP), p.1162-1166 (1997)
Astronomy and Astrophysics
Astrophysics
5 pages including 7 figures, latex, aipproc.sty, aipproc.cls, epsfig.sty. To be published in Proc. 4th Compton Symp., 1997 (27
Scientific paper
10.1063/1.54096
An extensive program for the calculation of galactic cosmic-ray propagation has been developed. This is a continuation of the work described in Strong & Youssefi (1995). The main motivation for developing this code is the prediction of diffuse Galactic gamma rays for comparison with data from the CGRO instruments EGRET, COMPTEL, and OSSE. The basic spatial propagation mechanisms are (momentum-dependent) diffusion, convection, while in momentum space energy loss and diffusive reacceleration are treated. Primary and secondary nucleons, primary and secondary electrons, and secondary positrons are included. Fragmentation and energy losses are computed using realistic distributions for the interstellar gas and radiation fields. This study indicates that it is possible to construct a model satisfying a wide range of observational constraints and provides a basis for future developments.
Moskalenko Igor V.
Strong Andrew W.
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