Study of Solar Flares and Development of Magnetic Field

太阳耀斑和磁场发展的研究

• 批准号: 04044170
• 负责人: HIRAYAMA Tadashi
• 金额: $ 4.03万
• 依托单位: National Astronomical Observatory
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04044170/
• 关键词: Solar Physics; Solar Magnetic Fields; Artificial Satellites; Solar Corona; Solar Flares; Chromosphere; Photosphere; Sunspots; 磁場構造

The Solar-A ('Yohkoh') satellite was launched in August 1991, and has been returning X-ray data of the solar corona and the solar flares. An important knowledge which Yohkoh has brought to us is that a full understanding of the coronal physics inevitably requires supporting ground-based spectroscopic and imaging observations, in particular the observations of the magnetic field on the solar surface.This project aimed at combining high quality optical data obtained at the observing facilities in both countries together with X-ray data from Yohkoh. For this purpose the Japanese participants visited China in 1992 September and presented the most recent results from Yohkoh and other instruments. This stimulated the participation of Chinese solar physicists into the analysis of Yohkoh data. In 1993 February, Prof. Ai visited Japan and discussed specific targets of cooperative research. We selected three active regions to study, and scientists in both countries started data analysis. In 1993 July we held a workshop at Sagamihara for summarizing the studies made so far. Nineteen solar physicists from China participated in this meeting, and the proceedings was published. After the meeting the Chinese participants visited several observatories in Japan and investigated the possibility of further cooperative researches. As an outcome of this effort, in 1993 August China participated in an observing campaign in cooperation with Yohkoh for the study of the evolution of emerging flux regions. The initial results will be reported at the meeting of the Astronomical Society of Japan.Another topic of discussion in this project is the space program on solar physics in the future. Both countries have plans to launch an optical telescope to observe the sun in high spatial resolution. Technical issues on the filter instruments to be flown with the satellite were extensively discussed in this program.

Solar-A（“Yohkoh”）卫星于1991年8月发射，一直在返回日冕和太阳耀斑的X射线数据。Yohkoh给我们带来的一个重要知识是，要充分了解日冕物理学，不可避免地需要支持地面光谱和成像观测，特别是对太阳表面磁场的观测。该项目旨在将两国观测设施获得的高质量光学数据与Yohkoh的X射线数据结合起来。为此目的，日本与会者于1992年9月访问了中国，并介绍了Yohkoh和其他仪器的最新结果。这刺激了中国太阳物理学家参与对Yohkoh数据的分析。1993年2月，艾教授访问日本，并讨论了合作研究的具体目标。我们选择了三个活跃地区进行研究，两国的科学家开始进行数据分析。1993年7月，我们在相模原举办了一次研讨会，总结了迄今为止所做的研究。来自中国的19位太阳物理学家参加了这次会议，会议记录已经出版。会后，中国代表团访问了日本的几个天文台，并探讨了进一步合作研究的可能性。作为这一努力的一项成果，1993年8月，中国参加了与Yohkoh合作的一次观测活动，以研究新兴通量区的演变。初步结果将在日本天文学会会议上报告。该项目的另一个讨论议题是未来关于太阳物理学的空间计划。这两个国家都计划发射一个光学望远镜，以高空间分辨率观测太阳。在该方案中广泛讨论了与卫星一起飞行的过滤器仪器的技术问题。

项目成果

K.Shibata et al.: "Observations of W-ray Jets Using YOHKOH Soft X-ray Telescope" IAU Colloquium. 141. 343-346 (1993)

K.Shibata 等人：“使用 YOHKOH 软 X 射线望远镜观测 W 射线射流”IAU 研讨会。

K.Ichimoto et al.: "Magnetic Field Observation with the Solar Flare Telescope" IAU Colloquium. 141. 166-269 (1993)

K.Ichimoto 等人：“利用太阳耀斑望远镜进行磁场观测”IAU 座谈会。

G.Ai(et al.): "Are the foot Points of the Soft X-ray Bright Loops the Area with the Redshift the Chromospheric H β Dopplergram" Proceedings of the Yohkoh Symposium 1993 (Universal Academy Press,Tokyo). (1993)

G.Ai（等人）：“软 X 射线明亮环路的脚点是色球 H β 多普勒图的红移”，1993 年 Yohkoh 研讨会论文集（环球学院出版社，东京）（1993 年）。

T.Sakurai: "Magnetic Field Structures and Flares" Adv.Space Res.13(9). 109-117 (1993)

T.Sakurai：“磁场结构和耀斑”Adv.Space Res.13(9)。

S.Tsuneta et al.: "Observation of a Solar Flare at the Limb with the Yohkoh Soft.X-Ray Telescope" Publ.Astron.Soc.Japan. 44. L63-L69 (1992)

S.Tsuneta 等人：“用 Yohkoh Soft.X 射线望远镜观测太阳耀斑”Publ.Astron.Soc.Japan。