论文标题

引力Larmor进动

Gravitational Larmor precession

论文作者

Chakraborty, Chandrachur, Majumdar, Parthasarathi

论文摘要

受到据报道,据报道存在萨吉威斯A*和Messier 87*的中央超级黑洞附近存在实质磁场的启发,我们考虑在其附近存在磁场的情况下,靠近通用球形黑洞的时空中的测试粒子运动。用适当的参数来对这种时空进行建模,以轴对称,非旋转的Ernst-Melvin-schwarzschschschschschschilzschild黑洞几何形状,我们计算带有质量测试粒子的大地测量淋巴结式预动力,并为此空间旋转,并获得了旋转的旋转,并获得了旋转的旋转(均为旋转)(均未旋转)。参数)可以产生这样的进攻。我们称这种磁场生成的现象引力Larmor进动。我们在这里提出的是概念初期测定的证明,而不是对邻居中具有磁场的超级质量黑洞的详细分析。但是,为了完整性,我们简要讨论了这种进动的观察前景,该预测的可用磁场强度接近星系中央黑洞。

Inspired by the reported existence of substantive magnetic fields in the vicinity of the central supermassive black holes in Sagitarius A* and Messier 87*, we consider test particle motion in the spacetime close to a generic spherical black hole in the presence of magnetic fields in its vicinity. Modelling such a spacetime in terms of an axisymmetric, non-rotating Ernst-Melvin-Schwarzschild black hole geometry with appropriate parameters, we compute the geodesic nodal-plane precession frequency for a test particle with mass, for such a spacetime, and obtain a non-vanishing result, surpassing earlier folklore that only axisymmetric spacetimes with rotation (non-vanishing Kerr parameter) can generate such a precession. We call this magnetic field-generated phenomenon Gravitational Larmor Precession. What we present here is a Proof of Concept incipient assay, rather than a detailed analysis of supermassive black holes with magnetic fields in their neighbourhood. However, for completeness, we briefly discuss observational prospects of this precession in terms of available magnetic field strengths close to central black holes in galaxies.

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