A Preliminary Measurement of the Sky Brightness at the Namco Lake of Tibet During 2013
文献类型：期刊论文
| 作者 | Liu, Qiang3,4; Liu, Yu4; Song TF(宋腾飞)1; Elmhamdi, Abouazza2; Sha, Feiyang4; Li, Haitang4; Zhang XF(张雪飞)1; Oloketuyi, Jacob4 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 25期号:11 |
| 关键词 | instrumentation: photometers methods: statistical site testing |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ae05fa |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | The solar corona is the primary driver of the solar storms and space weather. In order to routinely monitor the coronal activities, a dedicated solar telescope is essential, a coronagraph. However, the site conditions suitable for a ground-based coronagraph are rather critical and necessitate stringent site selection criteria. Among the numerous astronomical observatory site parameters, the sky background brightness of the day is recognized as a key parameter in evaluating the quality of a solar observatory for coronal observation before considering to install a coronagraph. To achieve optimal sky brightness observing condition, coronagraphs are usually installed on high mountains where the atmosphere is thin and the background scattered light effects from the sky are significantly reduced. Given the unique characteristics of the Tibetan Plateau, often referred to as the Third Pole of the Earth, a scientific assessment is crucial to evaluate its suitability as a potential location for the next-generation Chinese Giant Solar Telescope and large coronagraphs. Here, we report the first results of our measurements of the sky brightness at the Namco Lake location ( 30 degrees 45.0 ' N, 90 degrees 40.0 ' E, 4730 m above sea level, the highest large lake in the world), using a new Sky Brightness Monitor during the period 2013 August to December. The results show that the average value of the normalized (per airmass) sky brightness is as low as 13.84 mu I-circle dot for 530 nm. The excellent sky brightness conditions at the Namco Lake location demonstrate its high suitability for routine coronal observations. Therefore, the Namco site deserves attention for solar observations and we should continue to carry out in-depth monitoring and systematic study of multiple parameters in the future. |
| 学科主题 | 天文学 ; 天体物理学 ; 实测天体物理学 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | SITE ; TELESCOPE |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12373063]; National Natural Science Foundation of China (NSFC)[11533009]; Deanship of Scientific Research at King Saud University[RG-1440-092]; National Science & Technology Infrastructure of China |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001591360700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China (NSFC)[12373063, 11533009] ; Deanship of Scientific Research at King Saud University[RG-1440-092] ; National Science & Technology Infrastructure of China |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28629]  |
| 专题 | 无名山观测站 |
| 通讯作者 | Liu, Yu |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; 2.Department of Physics and Astronomy, King Saud University, Riyadh 11451, Saudi Arabia 3.School of Physics and Astronomy, China West Normal University, Nanchong 637002, China; 4.School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 611756, China; lyu@swjtu.edu.cn; |
| 推荐引用方式 GB/T 7714 | Liu, Qiang,Liu, Yu,Song TF,et al. A Preliminary Measurement of the Sky Brightness at the Namco Lake of Tibet During 2013[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2025,25(11). |
| APA | Liu, Qiang.,Liu, Yu.,宋腾飞.,Elmhamdi, Abouazza.,Sha, Feiyang.,...&Oloketuyi, Jacob.(2025).A Preliminary Measurement of the Sky Brightness at the Namco Lake of Tibet During 2013.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,25(11). |
| MLA | Liu, Qiang,et al."A Preliminary Measurement of the Sky Brightness at the Namco Lake of Tibet During 2013".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 25.11(2025). |
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来源：云南天文台
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