Tangent cylinders (TCs) have shaped our understanding of planetary dynamos and liquid cores. The Taylor-Proudman constraint creates these imaginary surfaces because of planetary rotation, separating polar and equatorial regions, but cannot explain the flows meandering through them. Here, we establish and verify experimentally that magnetic fields aligned with rotation drive flows into TCs, linked to the flows along TCs by a magnetic Taylor-Proudman constraint. This constraint explains and quantifies how magnetic fields reshape rotating flows in planetary interiors and magnetorotating flows in general.

中文翻译：

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磁 Taylor-Proudman 约束解释流入切线圆柱体的流动


切线圆柱体 （TC） 塑造了我们对行星发电机和液态核心的理解。Taylor-Proudman 约束由于行星旋转创造了这些假想表面，将极地和赤道地区分开，但无法解释蜿蜒穿过它们的流动。在这里，我们通过实验确定并验证了与旋转驱动对齐的磁场流入 TC，通过磁 Taylor-Proudman 约束与沿 TC 的流动相关联。这个约束解释并量化了磁场如何重塑行星内部的旋转流和一般的磁旋转流。