Study of Planetary Magnetospheres Using Infrared / Radio Data

1999年8月，全体调查人员举行了一次全面规划会议。讨论了在红外/无线电波段观测到的木星磁层现象、数据和未来的“协调”观测计划。在红外线（佐藤和康纳利）和无线电（今井，雷耶斯和卡尔）进行了相应的观察。通过分析这些数据，我们获得了木星北极光的非凡细节，以及IFT足迹的非常精确的位置。今井的调制通道模型已被证明是非常强大的确定木星十分制射电源的精确位置。我们的成功在很大程度上归功于1999-2000年间木星旋转轴的倾斜（最大3度），这证明了我们选择研究时期的合理性。研究结果已在多篇论文中发表，并在许多会议上发表，如在美国地球物理联合会（佐藤，1999年12月）、英国皇家学会（康纳尼，2000年2月）、欧洲地球物理学会（今井，2000年4月）等。我们未来的计划是：(1)改进VIP4磁场模型；(2)建立极光降水通量模型；(3)完善调制通道模型并将其应用于多种数据；(4)结合红外/紫外/无线电数据进一步了解磁层物理基础。

A comprehensive planning meeting was held in August 1999 with all investigators. Discussed the Jovian magnetospheric phenomena observed in the infrared/radio wavelengths, the data, and future "coordinated" observing plans. Observations in the infraed (Satoh and Connerney) and in the radio (Imai, Reyes, and Carr) were made accordingly.By analyzing these data, we've obtained extraordinary details of Jupiter's northern aurora, and very precise positions of the IFT footprints. Imai's modulation lane model has been proven to be very powerful determining precise location of Jovian decametric radio source. Our success owes much on the tilt of Jupiter's rotation axis (3 degrees max) during 1999-2000, justifying our choise of research period.The results have been published in several papers, as well as many meeting presentations, such as the one at the American Geophysical Union (Satoh, Dec 1999), the Royal Society (Connerney, Feb 2000), European Geophysical Society (Imai, Apr 2000), etc.Our future plan is : (1) to improve the VIP4 jovimagnetic field model, (2) to develop the precipitation flux model for the aurora, (3) to refine the modulation lane model and apply it to many data, and (4) to combine infrared/ultraviolet/radio data to further understand the fundamentals in the magnetospheric physics.