Search for line-like signals in the all-sky Fermi-LAT data
文献类型：期刊论文
| 作者 | Li, Shang1,2; Xia, Zi-Qing1,3; Liang, Yun-Feng1 ; Duan, Kai-Kai1,2; Shen, Zhao-Qiang1,2; Li, Xiang1; Feng, Lei1; Yuan, Qiang1,3; Fan, Yi-Zhong1,3; Chang, Jin1
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2019-06-17 |
| 卷号 | 99期号:12页码:10 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.99.123519 |
| 通讯作者 | Liang, Yun-Feng(liangyf@pmo.ac.cn) |
| 英文摘要 | In order to search for the line like signals in the Fermi-LAT data, we have analyzed totally 49152 regions of interest (ROIs) that cover the whole sky. No ROI displays a line signal with test statistic (TS) value above 25, while for 50 ROIs weak linelike excesses with TS > 16 are presented. The intrinsic significances of these potential signals arc further reduced by the large trial factor introduced in such kind of analysis. For the largest TS value of 24.3 derived in our analysis, the corresponding global significance is only 0.54 sigma. We thus do not find any significant linelike signal and set up constraints on the cross section of dark matter annihilating to gamma-ray lines, |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000471985900004 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/27522]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Liang, Yun-Feng |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shang,Xia, Zi-Qing,Liang, Yun-Feng,et al. Search for line-like signals in the all-sky Fermi-LAT data[J]. PHYSICAL REVIEW D,2019,99(12):10. |
| APA | Li, Shang.,Xia, Zi-Qing.,Liang, Yun-Feng.,Duan, Kai-Kai.,Shen, Zhao-Qiang.,...&Chang, Jin.(2019).Search for line-like signals in the all-sky Fermi-LAT data.PHYSICAL REVIEW D,99(12),10. |
| MLA | Li, Shang,et al."Search for line-like signals in the all-sky Fermi-LAT data".PHYSICAL REVIEW D 99.12(2019):10. |
入库方式： OAI收割
来源：紫金山天文台
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