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arXiv 2403.13019gr-qcastro-ph.GAhep-phhep-thmath-phmath.MP
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多体引力与星系旋转曲线

Many body gravity and the galaxy rotation curves

S Ganesh

AI总结:

本文将基于度规热变化的热引力理论推广至部分热化系统,提出多体引力理论,成功解释了银河系和仙女座星系的旋转曲线,复现了63个星系的径向加速度关系,并探讨了宽双星系统。

摘要:

先前提出了一种新理论来对具有热梯度的系统进行建模,该理论基于一个假设:温度的时空变化可以重新表述为度规的变化。将热变化和引力引起的度规变化结合起来,便在5维时空-温度背景下引出了热引力的概念。当5维爱因斯坦场方程被投影到4维空间时,会在场方程中产生额外的项。这可能导致独特的现象,例如在强引力场存在时标量粒子的自发对称性破缺。这一最初在量子力学框架下构思的理论,现在被调整以解释星系旋转曲线。星系并不处于热平衡状态。引入了一个称为“热化程度”的参数来对部分热化系统进行建模。将热引力推广至部分热化系统,导出了多体引力理论。目前表明,多体引力理论能够在相当程度上解释银河系和M31(仙女座)星系的旋转曲线。此外,还成功复现了63个星系(其星系质量跨越三个数量级)的径向加速度关系(RAR)。最后,简要探讨了宽双星(WBS)系统。

英文摘要:

A novel theory was proposed earlier to model systems with thermal gradients, based on the postulate that the spatial and temporal variation in temperature can be recast as a variation in the metric. Combining the variation in the metric due to the thermal variations and gravity, leads to the concept of thermal gravity in a 5-D space-time-temperature setting. When the 5-D Einstein field equations are projected to a 4-D space, they result in additional terms in the field equations. This may lead to unique phenomena such as the spontaneous symmetry breaking of scalar particles in the presence of a strong gravitational field. This theory, originally conceived in a quantum mechanical framework, is now adapted to explain the galaxy rotation curves. A galaxy is not in a state of thermal equilibrium. A parameter called the "degree of thermalization" is introduced to model partially thermalized systems. The generalization of thermal gravity to partially thermalized systems, leads to the theory of many-body gravity. The theory of many-body gravity is now shown to be able to explain the rotation curves of the Milky Way and the M31 (Andromeda) galaxies, to a fair extent. The radial acceleration relation (RAR) for 63 galaxies, with their galactic masses spanning three orders of magnitude, has been replicated. Finally, the wide binary star (WBS) system is touched upon.

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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