A hybrid model of GeV-TeV gamma ray emission from the Galactic center | |
Guo YQ(郭义庆); Yuan Q(袁强); 刘成;Guo, YQ; Yuan, Q; Liu, C; Li, AF | |
刊名 | JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS |
2013 | |
卷号 | 40期号:6页码:65201 |
英文摘要 | The observations of high energy gamma-ray emission from the Galactic center (GC) by HESS, and recently by Fermi, suggest cosmic ray acceleration in the GC and possibly around the supermassive black hole. In this work we propose a lepton-hadron hybrid model to simultaneously explain the GeV-TeV gamma-ray emission. Both electrons and hadronic cosmic rays were accelerated during the previous activity of the GC. These particles would then diffuse outwards and interact with the interstellar gas and background radiation field. The collisions between hadronic cosmic rays with gas are responsible for the TeV gamma-ray emission detected by HESS. With fast cooling in the strong radiation field, the electrons would cool down and radiate GeV photons through inverse Compton scattering off the soft background photons. This scenario provides a natural explanation for the observed GeV-TeV spectral shape of gamma-ray. |
学科主题 | Physics |
收录类别 | SCI |
WOS记录号 | WOS:000319189100015 |
公开日期 | 2016-05-03 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/224571] |
专题 | 高能物理研究所_粒子天体物理中心 |
推荐引用方式 GB/T 7714 | Guo YQ,Yuan Q,刘成;Guo, YQ,et al. A hybrid model of GeV-TeV gamma ray emission from the Galactic center[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2013,40(6):65201. |
APA | 郭义庆,袁强,刘成;Guo, YQ,Yuan, Q,Liu, C,&Li, AF.(2013).A hybrid model of GeV-TeV gamma ray emission from the Galactic center.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,40(6),65201. |
MLA | 郭义庆,et al."A hybrid model of GeV-TeV gamma ray emission from the Galactic center".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 40.6(2013):65201. |
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