OBSERVATION OF TeV GAMMA RAYS FROM THE UNIDENTIFIED SOURCE HESS J1841-055 WITH THE ARGO-YBJ EXPERIMENT
文献类型：期刊论文
| 作者 | ARGO-YBJ Collaboration |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2013 |
| 卷号 | 767期号:2 |
| 关键词 | CYGNUS REGION DETECTOR CALIBRATION EMISSION |
| 通讯作者 | Bartoli, B (reprint author), Univ Naples Federico II, Dipartimento Fis, Complesso Univ Monte St Angelo,Via Cinthia, I-80126 Naples, Italy. |
| 英文摘要 | We report the observation of a very high energy gamma-ray source whose position is coincident with HESS J1841-055. This source has been observed for 4.5 years by the ARGO-YBJ experiment from 2007 November to 2012 July. Its emission is detected with a statistical significance of 5.3 standard deviations. Parameterizing the source shape with a two-dimensional Gaussian function, we estimate an extension sigma = (0.40(-0.22)(+0.32))degrees, which is consistent with the HESS measurement. The observed energy spectrum is dN/dE = (9.0 +/- 1.6) x 10(-13)(E/5 TeV)(-2.32 +/- 0.23) photons cm(-2) s(-1) TeV-1, in the energy range 0.9-50 TeV. The integral gamma-ray flux above 1 TeV is 1.3 +/- 0.4 Crab, which is 3.2 +/- 1.0 times the flux derived by HESS. The differences in the flux determination between HESS and ARGO-YBJ and possible counterparts at other wavelengths are discussed. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317346800002 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213507]  |
| 专题 | 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 | ARGO-YBJ Collaboration. OBSERVATION OF TeV GAMMA RAYS FROM THE UNIDENTIFIED SOURCE HESS J1841-055 WITH THE ARGO-YBJ EXPERIMENT[J]. ASTROPHYSICAL JOURNAL,2013,767(2). |
| APA | ARGO-YBJ Collaboration.(2013).OBSERVATION OF TeV GAMMA RAYS FROM THE UNIDENTIFIED SOURCE HESS J1841-055 WITH THE ARGO-YBJ EXPERIMENT.ASTROPHYSICAL JOURNAL,767(2). |
| MLA | ARGO-YBJ Collaboration."OBSERVATION OF TeV GAMMA RAYS FROM THE UNIDENTIFIED SOURCE HESS J1841-055 WITH THE ARGO-YBJ EXPERIMENT".ASTROPHYSICAL JOURNAL 767.2(2013). |
入库方式： OAI收割
来源：高能物理研究所
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