First Wide Field-of-view X-Ray Observations by a Lobster-eye Focusing Telescope in Orbit
文献类型：期刊论文
| 作者 | Zhang, C; Ling, ZX; Sun, XJ ; Sun, SL; Liu, Y; Li, ZD; Xue, YL; Chen, YF; Dai, YF; Jia, ZQ
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2022 |
| 卷号 | 941期号:1页码:L2 |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/aca32f |
| 文献子类 | Article |
| 英文摘要 | As a novel X-ray focusing technology, lobster-eye micropore optics (MPO) feature both a wide observing field of view and true imaging capability, promising sky monitoring with significantly improved sensitivity and spatial resolution in soft X-rays. Since first proposed by Angel, the optics have been extensively studied, developed and trialed over the past decades. In this Letter, we report on the first-light results from a flight experiment of the Lobster Eye Imager for Astronomy, a pathfinder of the wide-field X-ray telescope of the Einstein Probe mission. The piggyback imager, launched in 2022 July, has a mostly unvignetted field of view of 18.degrees 6 x 18.degrees 6. Its spatial resolution is in the range of 4 '-7 ' in FWHM and the focal spot effective area is 2-3 cm(2), both showing only mild fluctuations across the field of view. We present images of the Galactic center region, Sco X-1, and the diffuse Cygnus Loop nebular taken in snapshot observations over 0.5-4 keV. These are truly wide-field X-ray images of celestial bodies observed, for the first time, by a focusing imaging telescope. Initial analyses of the in-flight data show excellent agreement between the observed images and the on-ground calibration and simulations. The instrument and its characterization are briefly described, as well as the flight experiment. The results provide a solid basis for the development of the present and proposed wide-field X-ray missions using lobster-eye MPO. |
| 电子版国际标准刊号 | 2041-8213 |
| 语种 | 英语 |
| WOS记录号 | WOS:000896775900001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299267]  |
| 专题 | 高能物理研究所_粒子天体物理中心 高能物理研究所_加速器中心 高能物理研究所_多学科研究中心 高能物理研究所_管理与技术支持 高能物理研究所_东莞分部 东莞分部_加速器技术部 硬X射线调制望远镜卫星 |
| 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 | Zhang, C,Ling, ZX,Sun, XJ,et al. First Wide Field-of-view X-Ray Observations by a Lobster-eye Focusing Telescope in Orbit[J]. ASTROPHYSICAL JOURNAL LETTERS,2022,941(1):L2. |
| APA | Zhang, C.,Ling, ZX.,Sun, XJ.,Sun, SL.,Liu, Y.,...&Yuan, W.(2022).First Wide Field-of-view X-Ray Observations by a Lobster-eye Focusing Telescope in Orbit.ASTROPHYSICAL JOURNAL LETTERS,941(1),L2. |
| MLA | Zhang, C,et al."First Wide Field-of-view X-Ray Observations by a Lobster-eye Focusing Telescope in Orbit".ASTROPHYSICAL JOURNAL LETTERS 941.1(2022):L2. |
入库方式： OAI收割
来源：高能物理研究所
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