土星的引力场,内部旋转和内部结构
John D Anderson1, Gerald Schubert
1121 South Wilson Avenue, Pasadena, CA 91106-3017, USA. jdandy@earthlink.net
概括
土星 土星 土星 土星
科学领域:
- 行星科学 行星科学
- 天文学 天文学
- 气体巨头研究研究
背景情况:
- 土星的内部旋转周期仍然是未知的.
- 以前的估计受到磁场和辐射数据的限制.
研究的目的:
- 为了确定土星精确的内部旋转周期.
- 为了完善土星大气动力学和内部结构的模型.
主要方法:
- 利用卡西尼号航天器的引力数据.
- 合并的开拓者和旅行者无线电隐蔽和风数据.
主要成果:
- 确定土星的旋转周期为10小时,32分钟,35 +/- 13秒.
- 表示赤道风速比以前假设的要慢.
- 观测到类似于木星的大气循环模式.
结论:
- 精细的旋转周期影响了对土星内部结构的理解.
- 暗示在行星中心附近发生了分子到金属的过渡.
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