| Project/Area Number |
05044200
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| Research Category |
Grant-in-Aid for Overseas Scientific Survey.
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| Allocation Type | Single-year Grants |
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| Research Institution | National Astronomical Observatory |
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Principal Investigator |
SHIBATA Kazunari National Astronomical Observatory, 太陽物理学研究系, 助教授 (70144178)
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| Co-Investigator(Kenkyū-buntansha) |
SCHUSSLER M. Kiepenheuer Institut fur Sonnenphysik, 助教授
SCHROTER E. Kiepenheuer Institut fur Sonnenphysik, 教授
TOHMURA Ichiro Ohsaka Prefectural College of Technology, 助教授 (60207529)
KITAI Reizaburo Faculty of Science, Kyoto University, 理学部, 助手 (40169850)
KUROKAWA Hiroki Faculty of Science, Kyoto University, 理学部, 助教授 (80135508)
SUEMATSU Yoshinori National Astronomical Observatory, 太陽物理学研究系, 助教授 (50171111)
SAKURAI Takashi National Astronomical Observatory, 太陽物理学研究系, 教授 (40114491)
HIRAYAMA Tadashi National Astronomical Observatory, 太陽物理学研究系, 教授 (20012841)
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| Project Period (FY) |
1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Keywords | Solar Physics / Solar Magnetic Fields / Artificial Satellites / Solar Corona / Chromosphere / Photosphere / Granulation / Sunspots |
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| Research Abstract |
The Solar-A ('Yohkoh') satellite was launched in August 1991. This satellite aims at studying the sun in X-ray. So far the satellite performs quite satisfactorily, returning spectroscopic and imaging data of the solar corona and the solar flares. An important knowledge which Yohkoh has brought to us is that the solar corona is more dynamic and magnetically structured than we anticipated, and full understanding of the coronal physics inevitably requires the observations of the chromosphere and the photosphere with the best available resolution.
The project we proposed aims 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 Kiepenheuer Institute and discussed scientific programs to be pursued under this cooperative program. As an outcome of this cooperation, the first coordinated observation was carried out in the period of 3-13 August, 1993. Observatories around the world including those in Japan and in the Canary islands (Spain) participated in this campaign. Several interesting research topics were identified and analyzed in a workshop held in 1994 February. Initial results of this campaign will be presented at the spring meeting of the Astronomical Society of Japan.
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