Observation of Jovian Visible Aurora and its Generation Mechanism

木星可见极光的观测及其产生机制

• 批准号: 12640428
• 负责人: WATANABE Shigeto
• 金额: $ 2.3万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12640428/
• 关键词: Jupiter; Atmosphere; Ionosphere; Magnetosphere; Plasma; Airglow; Aurora; 惑星大気光

We have built an optical observation system of Jovian visible aurora and airglow, which consists of CCD and narrow band filter on ground-based telescope. The emissions have never been measured from ground. We have carried out the observations by use of Rikubetsu 110cm telescope, lidate 60cm telescope and Hokkaido University 10cm telescope from 1999 to 2001. We have also developed an imaging processing system that analyzes the image of Jupiter taken with short exposure time and integrated. We found some emissions in the northern region of Jupiter. Our system may be able to apply to detect very weak signals from planets or airglow.We have investigated theoretically the atmosphere of Jupiter as well as Venus, Earth and Mars. The results suggested that the interactions with clouds and plasma are important to planetary atmospheres. Especially, at high altitudes the ion-drag effect must be considered in the planetary upper atmospheres.

我们在地基望远镜上搭建了由CCD和窄带滤光片组成的木星可见极光和气辉光学观测系统。排放量从未从地面测量过。 1999年至2001年，我们利用陆别110厘米望远镜、利达特60厘米望远镜和北海道大学10厘米望远镜进行了观测。我们还开发了成像处理系统，对短曝光时间拍摄的木星图像进行分析和集成。我们在木星北部地区发现了一些排放物。我们的系统也许能够用于探测来自行星或气辉的非常微弱的信号。我们已经从理论上研究了木星以及金星、地球和火星的大气层。结果表明，与云和等离子体的相互作用对行星大气很重要。特别是，在高海拔地区，必须考虑行星高层大气中的离子拖曳效应。

项目成果

Taguchi, M., G. Funabashi, S. Watanabe, Y. Takahashi, H. Fukunishi: "Lunar albedo at hydrogen Lyman alpha by the NOZOMI/UVS, Earth"Earth Planets Space. 52(9). 645-647 (2000)

田口，M.，G.船桥，S.渡边，Y.高桥，H.福西：“NOZOMI/UVS，地球的氢莱曼α的月球反照率”地球行星空间。

Taguchi, M.他4名: "Ultraviolet Imaging Spectrometer(UVS) Experiment on board N0ZOMI Spacecraft : Instrumentation and Initial Results"Earth Planets Space. 52・1. 49-60 (2000)

田口 M. 和其他 4 人：“N0ZOMI 航天器上的紫外线成像光谱仪（UVS）实验：仪器和初步结果”地球行星空间 52・1（2000 年）。

Takahashi, Y. 0., Fujiwara, H., Fukunishi, H, Odaka, M., Hayashi, Y.-Y., Watanabe, S.: "Topographically Induced North-South Asymmetry of the Meridional Circulation in the Martian Atmosphere"J. Geophys. Res.. (in press). (2002)

高桥，Y. 0.，藤原，H.，福西，H，小高，M.，林，Y.-Y.，渡边，S.：“地形引起的火星大气中经向环流的南北不对称”

Taguchi, M.他4名: "Lunar albedo at hydrogen Lyman alpha by the NOZOMI/UVS"Earth Planets Space. 52・9. 645-647 (2000)

Taguchi, M. 和其他 4 人：“NOZOMI/UVS 的氢莱曼 α 的月球反照率”地球行星空间 52・9 (2000)。

Fukunishi, H.: "Mars ultraviolet imaging spectrometer experiment in the Planet-B mission"Adv.Space Res.. (In print). (2000)

Fukunishi, H.：“B 星任务中的火星紫外成像光谱仪实验”Adv.Space Res..（印刷中）。