| Co-Investigator(Kenkyū-buntansha) |
BOUGERET Jea Observatoire de Paris, Research S
ANDERSON Rog Univ. of Iowa, Dept. of Physics and Astrono, Research S
KOJIMA Hirotsugu Radio Atmospheric Science Center, Kyoto Univ., Assistant, 超高層電波研究センター, 助手 (10215254)
GURNETT Donald a. Dept.of Physics and Astronomy, Univ.of iowa, Professor, Dept. of Physics and Astrono, Professor
MURATA Takeshi Faculty of Engineering, Ehime Univ., Assistant, 工学部, 助手 (20274342)
KASAHARA Yoshiya Faculty of Engineering, Kyoto Univ., Assistant, 工学部, 助手 (50243051)
YAGITANI Satoshi Faculty of Engineering, Kanazawa Univ., Assistant, 工学部, 助手 (30251937)
USUI Hideyuki Radio Atmospheric Science Center, Kyoto Univ., Assistant, 超高層電波研究センター, 助手 (10243081)
OMURA Yoshiharu Radio Atmospheric Science Center, Kyoto Univ., Associate professor, 超高層電波研究センター, 助教授 (50177002)
OKADA Toshimi Faculty of Engineering, Toyama Prefectural Univ., Associate professor, 工学部, 助教授 (90008566)
TSUTSUI Minoru Kyoto Sangyo Univ., Associate professor, 計算機科学研究所, 助教授 (10026172)
HASHIMOTO Kozo Radio Atmospheric sceince Center, Kyoto Univ., professor, 超高層電波研究センター, 教授 (80026369)
NAGANO Isamu Faculty of Engineering, Kanazawa Univ., professor, 工学部, 教授 (50019775)
KIMURA Iwane Faculty of Engineering, Kyoto Univ., professor, 工学部, 教授 (00025884)
BOUGRET Jean-Louis Observatoire de Paris, Research Scientist
ANDERSON Roger r. Dept. of Physics and Astronomy, Univ.of iowa, Research Scientist
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| Research Abstract |
The present project was planned based on the collaboration among GEOTAIL,WIND,AKEBONO,ULYSSES,Freja, POLAR,and INTERBALL spacecraft. However, due to the delay of the launch schedule of the POLAR and INTERBALL spacecraft, we proceeded the collaboration mainly among the GEOTAIl-WIND,GEOTAIL-ULYSSES,and AKEBONO-Freja spacecraft. The collaboration between the GEOTAIL and ULYSSES focused on the study on the interplanetary shock before launching the WIND spacecraft. The USLYSSES observations on the interplanetary shock near the Jupiter showed the good correlation with them by GEOTAIL near the Earth.
On the collaboration between the GEOTAIL and WIND spacecraft, we paid our attention to the 2fp emissions, AKR emissions and Type III solar radio bursts. We successfully detected the source region of the 2fp emissions using the delay time of the observations between GEOTAIL and WIND.Further detailed study is continued using the more datasets.
The AKR emissions are observed in the high frequency range beyond 100kHz. It is radiated in the polar region and its generation mechanism is closely related to the geomagnetic activities. We studied the propagation characteristics of the AKR using the GEOTAIL and WIND observations. The 2 point observations provide us the important information on the propagation of the AKR.We found the strong location dependence on the observations of the AKR.
we checked the calibration of the receivers onboard the GEOTAIL and WIND spacecraft using the Type III solar radio bursts. We found the good agreement on the calibrated intensities of theirs.
The plasma wave activities in the polar region were investigated under the collaboration between the AKEBONO and Freja satellites. We focus on the ion cyclotron waves observed in the polar region and discussed their generation mechanisms using the linear theory based on the observations by these 2 satellites which were located in the different altitudes.
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