1999 Fiscal Year Final Research Report Summary
RESEARCH FOR THE HIGH PRECISION POSITIONING OF JUPITER'S DECAMETRIC RADIO SOURCE LOCATIONS
| Project/Area Number |
10640432
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Space and upper atmospheric physics
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| Research Institution | KOCHI NATIONA COLLEGE OF TECHNOLOGY |
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Principal Investigator |
IMAI Kazumasa KOCHI NATIONAL COLLEGE OF TECHNOLOGY, DEPARTMENT OF ELECTRICAL ENGINEERING, ASSOCIATE PROFESSOR, 電気工学科, 助教授 (20132657)
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| Co-Investigator(Kenkyū-buntansha) |
SATOH Takehiko TOKYO SCINCE UNIVERSITY, FRONTIER RESEARCH CENTER FOR INFORMATION SICENCE, LECTURER, 計算科学フロンティア研究センター, 講師 (10297632)
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| Project Period (FY) |
1998 – 1999
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| Keywords | JUPITER / RADIO EMISSIONS / DECAMETRIC RADIO WAVES / MAGNETOSPHERE |
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| Research Abstract |
We have developed a model to explain the production of modulation lanes in the dynamic spectra of Jupiter's decametric emission. By using our model and the analysis of the curvature of the modulation lanes we have obtained the cone half-angle of the emission for the Io-B source. Our results show that the value of the cone half-angle remains at a fixed value of 60 degrees for each of the storms analyzed and that the source System III longitude increased linearly with time. We also found that the measured cone half-angle of a few modulation lanes delineated by S bursts is about 50 degrees, 10 degrees smaller that the cone half-angle of modulation lanes of L bursts.
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