The Lyman-alpha Solar Telescope (LST) for the ASO-S mission - II. design of LST
文献类型：期刊论文
| 作者 | Chen, Bo6,7; Li, Hui4,5; Song, Ke-Fei7; Guo, Quan-Feng7; Zhang, Pei-Jie7; He, Ling-Ping6,7; Dai, Shuang7; Wang, Xiao-Dong7; Wang, Hai-Feng7; Liu, Chun-Long7 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 19期号:11页码:16 |
| ISSN号 | 1674-4527 |
| 关键词 | telescopes instrumentation: high angular resolution Sun: flares Sun: coronal mass ejections (CMEs) Sun: UV radiation |
| DOI | 10.1088/1674-4527/19/11/159 |
| 通讯作者 | Li, Hui(nj.lihui@pmo.ac.cn) |
| 英文摘要 | As one of the three payloads for the Advanced Space-based Solar Observatory (ASO-S) mission, the Lyman-alpha (Ly alpha) Solar Telescope (LST) is composed of three instruments: a Solar Corona Imager (SCI), a Ly alpha Solar Disk Imager (SDI) and a full-disk White-light Solar Telescope (WST). When working in-orbit, LST will simultaneously perform high-resolution imaging observations of all regions from the solar disk to the inner corona up to 2.5R(circle dot) (R-circle dot stands for the mean solar radius) with a spatial resolution of 4.8 '' and 1.2 '' for coronal and disk observations, respectively, and a temporal resolution of 30-120 s and 1-120 s for coronal and disk observations, respectively. The maximum exposure time can be up to 20 s due to precise pointing and image stabilization function. Among the three telescopes of LST, SCI is a dual-waveband coronagraph simultaneously and independently observing the inner corona in the HI Ly alpha (121.6 +/- 10nm) line and white light (WL) (700 +/- 40 nm) wavebands by using a narrowband Ly alpha beam splitter and has a field of view (FOV) from 1.1 to 2.5R(circle dot). The stray-light suppression level can attain <10(-6) B-circle dot (B-circle dot is the mean brightness of the solar disk) at 1.1R(circle dot) and <= 5x10(-8) B-circle dot at 2.5R(circle dot). SDI and WST are solar disk imagers working in the Ly alpha line and 360.0 nm wavebands, respectively, which adopt an off-axis two-mirror reflective structure with an FOV up to 1.2R(circle dot), covering the inner coronal edge area and relating to coronal imaging. We present the up-to-date design for the LST payload. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| WOS记录号 | WOS:000507468400005 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/35631]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Li, Hui |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Microsatellites, Shanghai 201210, Peoples R China 2.Shandong Univ, Weihai 264209, Peoples R China 3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China 4.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China 5.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210034, Peoples R China 6.State Key Lab Appl Opt, Changchun 130033, Peoples R China 7.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Bo,Li, Hui,Song, Ke-Fei,et al. The Lyman-alpha Solar Telescope (LST) for the ASO-S mission - II. design of LST[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(11):16. |
| APA | Chen, Bo.,Li, Hui.,Song, Ke-Fei.,Guo, Quan-Feng.,Zhang, Pei-Jie.,...&Yin, Zeng-Shan.(2019).The Lyman-alpha Solar Telescope (LST) for the ASO-S mission - II. design of LST.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(11),16. |
| MLA | Chen, Bo,et al."The Lyman-alpha Solar Telescope (LST) for the ASO-S mission - II. design of LST".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.11(2019):16. |
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来源：紫金山天文台
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