利用高空气球在近太空进行太阳 FUV-UV 光谱测量实验

IF 2.7 3区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Fei Wei, Xuanyi Zhang
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引用次数: 0

摘要

2022 年 9 月,"洪湖六号 "高空气球飞往近空间底部区域,进行了一次测量太阳 远紫外-紫外(FUV-UV)辐照度的实验,波长范围从 170 纳米到 400 纳米,光谱分 辨率优于 0.1 纳米。该实验的依据是太阳紫外光穿透高层大气从外太空到近太空的复杂截面窗口。太阳 FUV-UV 在高层大气中沉积能量,这为回答近空间整体热源中最重要的能量贡献者以及近空间环境如何响应太阳活动等科学问题提供了一把钥匙。在 150 至 210 纳米的波长范围内,辐照度图来自日冕的活跃区域,分子氧的横截面相对较小,允许该波段的某些波长到达离地面 20 至 30 千米的高度,这表明太阳耀斑可能直接影响近空间的底部区域。波长范围在 210 - 400 纳米之间的太阳紫外线辐照被上层大气吸收,这是波长的函数,能量垂直沉积在近空间的低层区域。该实验历史性地提供了测量数据,填补了近空间较低区域波长短于 280 纳米的空白。太阳 FUV-UV 光谱仪(SUVS)是一种基于改进的罗兰圆光学技术的紧凑型仪器,适用于 "红六 "气球有效载荷平台。本文介绍了太阳 FUV-UV 光谱测量实验的科学目标,提供了 SUVS 仪器飞行前校准信息,并展示了首批飞行数据结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Solar FUV-UV Spectra Measurement Experiment in the Near Space by High Altitude Balloon

An experiment measuring the solar far-ultraviolet-ultraviolet (FUV-UV) irradiance with spectral resolution better than 0.1 nm in the wavelength range from 170 to 400 nm was carried out by the “HongHu-6” high-altitude balloon that flew to the bottom region of the near-space in September 2022. This experiment was based on the fact that solar FUV-UV penetrates through a complex cross-section window of the upper atmosphere, from outer to near space. The solar FUV-UV deposits energy in the upper atmosphere, which provides a key to answer scientific questions on the most important energy contributor to overall heating sources of the near space and how the near-space environment responds to solar activities. In the wavelength range between 150 and 210 nm, irradiance maps from active regions of the solar corona, the comparative small cross-section of molecular oxygen allows certain wavelengths of the band to arrive at altitudes between 20 and 30 km above the ground, indicating solar flares could directly impact the bottom region of the near space. Solar UV irradiance in the wavelength range 210 – 400 nm is absorbed by the upper atmosphere as a function of wavelength, and energy is deposited vertically in the lower regions of the near space. This experiment historically provides measurement data to fill a gap in the wavelength shorter than 280 nm in the lower regions of the near space. The solar FUV-UV spectrometer (SUVS) is a compact instrument based on improved Roland circle optics to adapt to the “HongHu-6” balloon payload platform. In this paper, we introduce the scientific goals of the solar FUV-UV spectrum measurement experiment, provide information on the SUVS instrument preflight calibration, and present the first results from the flight data.

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来源期刊
Solar Physics
Solar Physics 地学天文-天文与天体物理
CiteScore
5.10
自引率
17.90%
发文量
146
审稿时长
1 months
期刊介绍: Solar Physics was founded in 1967 and is the principal journal for the publication of the results of fundamental research on the Sun. The journal treats all aspects of solar physics, ranging from the internal structure of the Sun and its evolution to the outer corona and solar wind in interplanetary space. Papers on solar-terrestrial physics and on stellar research are also published when their results have a direct bearing on our understanding of the Sun.
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