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arXiv 2102.03552gr-qcphysics.class-ph
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解构帧拖动

Deconstructing Frame Dragging

L. Herrera

摘要:

一个多世纪以前,Lense和Thirring报道了与大质量天体旋转相关的观测者世界线的涡度。在他们的例子中,由涡度引起的坐标系拖曳效应直接(明确)与源的旋转有关。然而,在许多其他情况下,情况并非如此,涡度的起源仍然模糊不清,难以识别。因此,为了解开这个问题,并寻找与标架拖曳相关的涡度的最终起源,我们在这篇手稿中分析了存在标架拖曳效应的非常不同的场景。具体地说,我们考虑一般真空稳态时空,一般电真空时空,辐射电真空时空和Bondi-Sachs辐射时空。我们确定的物理量存在于所有这些情况下,决定涡度,并可能合理地被认为是负责帧拖动。这样做,我们提供了一个全面的物理图片帧拖动。我们的结果的一些观测结果进行了讨论。

英文摘要:

The vorticity of world lines of observers associated to the rotation of a massive body was reported by Lense and Thirring more than a century ago. In their example the frame dragging effect induced by the vorticity, is directly (explicitly) related to the rotation of the source. However in many other cases it is not so, and the origin of vorticity remains obscure and difficult to identify. Accordingly, in order to unravel this issue, and looking for the ultimate origin of vorticity associated to frame dragging, we analyze in this manuscript very different scenarios where frame dragging effect is present. Specifically we consider general vacuum stationary spacetimes, general electro-vacuum spacetimes, radiating electro-vacuum spacetimes and Bondi--Sachs radiating spacetimes. We identify the physical quantities present in all these cases, which determine the vorticity and may legitimately be considered as responsible for the frame dragging. Doing so we provide a comprehensive physical picture of frame dragging. Some observational consequences of our results are discussed.

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。

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