The Fermi bubbles revisited
文献类型：期刊论文
| 作者 | Yang, Rui-zhi1,2; Aharonian, Felix1,3,4; Crocker, Roland1,5 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2014-07-01 |
| 卷号 | 567期号:0页码:0 |
| 关键词 | gamma-rays: ISM cosmic rays |
| ISSN号 | 0004-6361 |
| 英文摘要 | We analyze 60 months of all-sky data from the Fermi-LAT. The Fermi bubble structures discovered previously are clearly revealed by our analysis. With more data, hence better statistics, we can now divide each bubble into constant longitude slices to investigate their gross gamma-ray spectral morphology. While the detailed spectral behavior of each slice derived in our analysis is somewhat dependent on the assumed background model, we find, robustly, a relative deficit in the flux at low energies (i.e., hardening) toward the top of the south bubble. In neither bubble does the spectrum soften with longitude. The morphology of the Fermi bubbles is also revealed to be energy-dependent: at high energies they are more extended. We conclude from the gamma-ray spectrum at high latitudes that a low energy break in the parent cosmic ray population is required in both leptonic and hadronic models. We briefly discuss possible leptonic and hadronic interpretations of this phenomenology. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | MICROWAVE-ANISOTROPY-PROBE ; COSMIC-RAY DIFFUSION ; LARGE-AREA TELESCOPE ; MILKY-WAY ; RADIAL-DISTRIBUTION ; INTERSTELLAR-MEDIUM ; GALACTIC-CENTER ; GALAXY ; EMISSION ; PULSARS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341185300080 |
| 公开日期 | 2014-11-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10554]  |
| 专题 | 紫金山天文台_暗物质和空间天文实验室 |
| 作者单位 | 1.Max Planck Inst Kernphys, D-69029 Heidelberg, Germany 2.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Dublin Inst Adv Studies, Dublin 2, Ireland 4.Gran Sasso Sci Inst, I-67100 Laquila, Italy 5.Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia |
| 推荐引用方式 GB/T 7714 | Yang, Rui-zhi,Aharonian, Felix,Crocker, Roland. The Fermi bubbles revisited[J]. ASTRONOMY & ASTROPHYSICS,2014,567(0):0. |
| APA | Yang, Rui-zhi,Aharonian, Felix,&Crocker, Roland.(2014).The Fermi bubbles revisited.ASTRONOMY & ASTROPHYSICS,567(0),0. |
| MLA | Yang, Rui-zhi,et al."The Fermi bubbles revisited".ASTRONOMY & ASTROPHYSICS 567.0(2014):0. |
入库方式： OAI收割
来源：紫金山天文台
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。