Nuclear enhancement factor in calculation of Galactic diffuse gamma-rays: A new estimate with DPMJET-3

被引：113

作者：

Mori, Masaki ^{[1
]}

机构：

[1] Univ Tokyo, Inst Cosm Ray Res, Chiba 2778582, Japan

来源：

ASTROPARTICLE PHYSICS | 2009年 / 31卷 / 05期

关键词：

Gamma-rays; Cosmic-rays; Interstellar matter; COSMIC-RAY; SPECTRUM; EMISSION;

D O I：

10.1016/j.astropartphys.2009.03.004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：341 / 343

页数：3

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