通过速度梯度偶联Angular-momentum
Angular-momentum coupling through the tachocline
摘要：
对恒星自转的天文观测表明，至少太阳的表层已经失去了在主序星演化阶段初期所拥有的大量角动量;而对太阳风的观测表明，磁耦合至今仍在消耗太阳的角动量。此外，日震学分析显示，在几乎均匀旋转的辐射内部顶部的特定角动量近似（虽然不完全）与（差异旋转）对流区底部的球平均值相同，这表明角动量是通过速跃层传输的。这种运输的机制尚不清楚。也没有达成共识。我回顾了一些已经提出的建议，毫无疑问，根据我自己的观点，我的讨论是有偏见的。
英文摘要：
Astronomical observation of stellar rotation suggests that at least the surface layers of the Sun have lost a substantial amount of the angular momentum that they possessed at the beginning of the main-sequence phase of evolution; and solar-wind observations indicate that magnetic coupling is still draining angular momentum from the Sun today. In addition, helioseismological analysis has shown that the specific angular momentum at the top of the almost uniformly rotating radiative interior is approximately (although not exactly) the same as the spherically averaged value at the base of the (differentially rotating) convection zone, suggesting that angular momentum is being transported through the tachocline. The mechanism by which that transport is taking place is not understood. Nor is there a consensus of opinion. I review some of the suggestions that have been put forward, biassing my discussion, no doubt, according to my own opinions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
