关于压缩径向引潮力
On compressive radial tidal forces
摘要：
径向潮汐力可以是压缩的而不是破坏性的，这是一种在高级物理课程中经常被忽视的可能性。例如，径向潮汐压缩可以出现在包含较小星团的扩展恒星系统中。在特定的条件下，由这种扩展的质量分布产生的潮汐场可以对星团施加压缩效应，而不是通常的破坏力。引力的这个有趣的方面可以从许多教科书和天文学入门课程中给出的标准关系推导出来，并且可以作为一个机会来仔细研究引力物理学，恒星动力学和微分几何的某些方面。在巨大恒星系统的中心存在压缩潮汐，这可能为恒星的形成和原始星系的形成过程提出了新的演化方案。
英文摘要：
Radial tidal forces can be compressive instead of disruptive, a possibility that is frequently overlooked in high level physics courses. For example, radial tidal compression can emerge in extended stellar systems containing a smaller stellar cluster. For particular conditions the tidal field produced by this extended mass distribution can exert on the cluster it contains compressive effects instead of the common disruptive forces. This interesting aspect of gravity can be derived from standard relations given in many textbooks and introductory courses in astronomy and can serve as an opportunity to look closer at some aspects of gravitational physics, stellar dynamics, and differential geometry. The existence of compressive tides at the center of huge stellar systems might suggest new evolutionary scenarios for the formation of stars and primordial galactic formation processes.
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