INTEGRAL and Swift/XRT observations of IGR J18179-1621
文献类型：期刊论文
| 作者 | Li J(李剑); Zhang S(张澍) ; Li, J; Zhang, S; Torres, DF; Papitto, A; Chen, YP; Wang, JM; 陈玉鹏;王建民
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2012 |
| 卷号 | 426期号:1页码:L16-L20 |
| 关键词 | X-rays: individual: IGR J18179-1621 |
| 英文摘要 | IGR J18179-1621 is a hard X-ray binary transient discovered recently by INTEGRAL. Here we report on detailed timing and spectral analysis of IGR J18179-1621 in X-rays based on available INTEGRAL and Swift data. From the INTEGRAL analysis, IGR J18179-1621 is detected with a significance of 21.6s in the 1840 keV band by ISGRI and 15.3s in the 325 keV band by JEM-X, between 2012 February 29 and 2012 March 1. We analyse two quasi-simultaneous Swift ToO observations. A clear 11.82-s pulsation is detected above the white noise at a confidence level larger than 99.99 per cent. The pulse fraction is estimated as 22 +/- 8 per cent at 0.210 keV. No sign of pulsation is detected by INTEGRAL/ISGRI in the 1840 keV band. With Swift and INTEGRAL spectra combined in soft and hard X-rays, IGR J18179-1621 could be fitted by an absorbed power law with a high-energy cut-off plus a Gaussian absorption line centred at 21.5 keV. An additional absorption intrinsic to the source is found, while the absorption line is evidence for a most probable origin from cyclotron resonant scattering and suggests a magnetic field in the emitting region of 2.4 x 1012 G. |
| 学科主题 | Astronomy & Astrophysics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000309455800004 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224370]  |
| 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 | Li J,Zhang S,Li, J,et al. INTEGRAL and Swift/XRT observations of IGR J18179-1621[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,426(1):L16-L20. |
| APA | 李剑.,张澍.,Li, J.,Zhang, S.,Torres, DF.,...&陈玉鹏；王建民.(2012).INTEGRAL and Swift/XRT observations of IGR J18179-1621.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,426(1),L16-L20. |
| MLA | 李剑,et al."INTEGRAL and Swift/XRT observations of IGR J18179-1621".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 426.1(2012):L16-L20. |
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。