概括
太阳周期的变化导致太阳地下旋转的微小变化. 这些角度速度的变化,主要是在高度,与太阳活动有关.
科学领域:
- * 太阳物理 太阳物理
- * * 太阳地震学 太阳地震学
- * 太阳能动力发电机
背景情况:
- * 太阳 p 模式频率分割提供了对太阳内部结构和动态的洞察.
- *之前的日震观测表明,太阳内部存在与太阳周期相关的变化.
研究的目的:
- * 通过使用日热地震数据,研究太阳表面下角速度在太阳周期中的变化.
- * 为了确定太阳旋转速率变化的度依赖.
- * 探索观察到的角速度变化与太阳活动之间的潜在联系.
主要方法:
- * 大熊太阳天文台 (1986年和1988-90年) 的太阳p模式频率分割数据的分析.
- * 对日发地震数据应用非对称逆转技术.
- *不同太阳度和时间段的旋转速度的比较.
主要成果:
- * 小 (大约1个小时) 1%) 检测到地下角速度的变化与太阳周期相关.
- *最大的角度速度变化 (约. 4 nHz) 在1986年至1988-90年间发生在高太阳度 (约. 60度).这是一个很好的方法.
- *天文地震学揭示了取决于度的旋转速率变化.
结论:
- * 太阳地下的旋转速度随太阳周期而变化,特别是在高度地区.
- * 观察到的角速度变化与早期关于太阳周期对太阳对流带的影响的建议是一致的.
- * 仍然需要一个详细的模型来解释这些太阳周期诱导的角速度变化.
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