A new determination of Jupiter's radio rotation period
A new determination of Jupiter's radio rotation period
复制标题
木星射电自转周期的新测定
DOI：
10.1029/96gl02388
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发表时间：
1995
影响因子：
5.2
通讯作者：
F. Reyes
中科院分区：
文献类型：
--
作者：
C. Higgins;T. Carr;F. Reyes
本文介绍了对木星内磁层自转周期的高精度测量结果。测量是从佛罗里达大学数据库的35个幻影木星十米波观测频率为18，20和22兆赫之间1957年和1994年。我们24次独立测量的平均值为9h55m29s.685，平均值的标准差为0s.0034。国际天文学联合会目前接受的系统III（1965）木星自转周期值比我们的值大7.4倍标准差;它似乎需要修正。我们设定了一个上限为每年27毫秒的可能漂移的旋转周期，如通过我们的方法测量。
The result of a measurement of the period of rotation of Jupiter's inner magnetosphere with unprecendented precision is presented. The measurement was made from the University of Florida database of 35 apparitions of Jovian decametric observations at frequencies of 18, 20, and 22 MHz between 1957 and 1994. The mean of our 24 independent measurements was 9h55m29s.685, and the standard deviation of the mean was 0s.0034. The System III (1965) Jovian rotation period value that is currently accepted by the International Astronomical Union is greater than our value by 7.4 times our standard deviation; it appears to be in need of revision. We set an upper limit of 27 milliseconds per year on a possible drift of the rotation period as measured by our method.