期刊
ASTROPARTICLE PHYSICS
卷 31, 期 5, 页码 341-343出版社
ELSEVIER
DOI: 10.1016/j.astropartphys.2009.03.004
关键词
Gamma-rays; Cosmic-rays; Interstellar matter
A new calculation of nuclear enhancement factor, used in estimation of Galactic diffuse gamma-ray flux from proton-proton interaction in order to take account of heavy nuclei included in cosmic-rays and interstellar matter, is presented by use of a Monte Carlo simulator, DPMJET-3. A new value of 1.8-2.0 in the energy range of 6-1000 GeV/nucleon, slightly increasing with kinetic energy of projectile cosmic-rays, is about 20% larger than previous estimates. (C) 2009 Elsevier B.V. All rights reserved.
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