Diffuse gamma rays and (p)over-bar flux from dark matter annihilation: A model for consistent results with EGRET and cosmic ray data
文献类型：期刊论文
| 作者 | Bi XJ(毕效军) ; Zhang J(张娟); Yuan Q(袁强); Bi, XJ; Zhang, J; Yuan, Q
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2008 |
| 卷号 | 78期号:4页码:43001 |
| 通讯作者 | [Bi, Xiao-Jun ; Zhang, Juan ; Yuan, Qiang] Chinese Acad Sci, IHEP, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Bi, Xiao-Jun] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China |
| 英文摘要 | In this work we develop a new propagation model for the Galactic cosmic rays based on the GALPROP code, including contributions from dark matter annihilation. Its predictions of the Galactic diffuse gamma-ray spectra are compatible with the EGRET data in all sky regions. It also gives consistent results about the diffuse gamma ray longitude and latitude distributions. The B/C, (10)Be/(9)Be, proton, electron and antiproton spectra are in agreement with cosmic ray measurements as well. In this model we have taken a universal proton spectrum throughout the Galaxy without introducing large fluctuation, considering the proton energy loss is negligible. The dark matter annihilation signals are boosted after taking the contributions from subhalos into account. Another interesting feature of this model is that it gives a better description of the diffuse gamma rays when taking the source distribution compatible with supernova remnants data, which is different from previous studies. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000259368500008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240611]  |
| 专题 | 高能物理研究所_实验物理中心 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Bi XJ,Zhang J,Yuan Q,et al. Diffuse gamma rays and (p)over-bar flux from dark matter annihilation: A model for consistent results with EGRET and cosmic ray data[J]. PHYSICAL REVIEW D,2008,78(4):43001. |
| APA | 毕效军,张娟,袁强,Bi, XJ,Zhang, J,&Yuan, Q.(2008).Diffuse gamma rays and (p)over-bar flux from dark matter annihilation: A model for consistent results with EGRET and cosmic ray data.PHYSICAL REVIEW D,78(4),43001. |
| MLA | 毕效军,et al."Diffuse gamma rays and (p)over-bar flux from dark matter annihilation: A model for consistent results with EGRET and cosmic ray data".PHYSICAL REVIEW D 78.4(2008):43001. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。