Muztagh-ata站点观测时间碎片化分析

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Research in Astronomy and Astrophysics Pub Date : 2023-11-06 DOI:10.1088/1674-4527/ad0a32

Wenbo Gu, Jing Xu, Guojie Feng, Xuan Zhang, Letian Wang, Xinliang Wang, Ali Esamdin, Lixian Shen

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引用次数: 0

摘要

云量在天文站点测试观测条件评估中起着关键作用。除了观测时间的比例外，它的碎片化也对夜间天空清晰度的质量产生重大影响。在本文中，我们引入了函数Γ∈[0,1]，该函数旨在全面捕获可用的观测时间的百分比及其连续性。利用2017年至2021年期间在Muztagh-ata现场收集的现场测量数据，我们展示了我们方法的有效性。统计结果表明，Muztagh-ata站点每年大约有122个绝对晴朗的夜晚和205个非常晴朗的夜晚，分别对应Γ≥0.9和Γ≥0.36。

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An analysis of the fragmentation of observing time at the Muztagh-ata site

Abstract Cloud cover plays a pivotal role in assessing observational conditions for astronomical site-testing. Except for the fraction of observing time, its fragmentation also wields a significant influence on the quality of nighttime sky clarity. In this article, we introduce the function Γ ∈ [0, 1], designed to comprehensively capture both the fraction of available observingtime and its continuity. Leveraging in situ measurement data gathered at the Muztagh-ata sitebetween 2017 and 2021, we showcase the effectiveness of our approach. The statistical resultillustrates that the Muztagh-ata site affords approximately 122 nights of absolute clear and205 very good nights annually, corresponding to Γ ≥ 0.9 and Γ ≥ 0.36 respectively.

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来源期刊

Research in Astronomy and Astrophysics 地学天文-天文与天体物理

CiteScore

3.20

自引率

16.70%

发文量

2599

审稿时长

6.0 months

期刊介绍： Research in Astronomy and Astrophysics (RAA) is an international journal publishing original research papers and reviews across all branches of astronomy and astrophysics, with a particular interest in the following topics: -large-scale structure of universe formation and evolution of galaxies- high-energy and cataclysmic processes in astrophysics- formation and evolution of stars- astrogeodynamics- solar magnetic activity and heliogeospace environments- dynamics of celestial bodies in the solar system and artificial bodies- space observation and exploration- new astronomical techniques and methods