Is the diffuse gamma background radiation generated by Galactic cosmic rays?

被引：26

作者：

Dar, A ^{[1
]}

De Rújula, A

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[2] Technion Israel Inst Technol, IL-32000 Haifa, Israel

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2001年 / 323卷 / 02期

关键词：

scattering; diffuse radiation; gamma-rays : theory;

D O I：

10.1046/j.1365-8711.2001.04246.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore the possibility that the diffuse gamma-ray background radiation (GBR) at high Galactic latitudes could be dominated by inverse Compton scattering of cosmic ray (CR) electrons on the cosmic microwave background radiation and on starlight from our own galaxy. Assuming that the mechanisms accelerating Galactic CR hadrons and electrons are the same, we derive simple and successful relations between the spectral indices of the GBR above a few MeV send the CR electrons and CR nuclei above a few GeV. We reproduce the observed intensity and angular dependence of the GBR, in directions away from the Galactic disc and centre, without recourse to hypothetical extragalactic sources.

引用

收藏

页码：391 / 401

页数：11

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