论文标题
$ f（r，t）$修改重力形式主义中的星系旋转曲线
The galaxy rotation curves in the $f(R,T)$ modified gravity formalism
论文作者
论文摘要
天文数据表明，银河旋转曲线大多在银河岩心的远处是平坦的，这揭示了我们关于重力如何在这些方案中如何工作的知识的不足。在本文中，我们从$ f（r，t）$修改的重力形式主义观点介绍了该问题的解决方案。通过研究具有可分离的（最小耦合模型）和RICCI标量$ r $的两类模型和不可分割的（非最小耦合模型）部分，以及能量巨型张量$ t $的痕迹，我们发现只有在后一种模型中，才有可能达到平面旋转曲线。
Astronomical data have shown that the galaxy rotation curves are mostly flat in the far distance of the galactic cores, which reveals the insufficiency of our knowledges about how gravity works in these regimes. In this paper we introduce a resolution of this issue from the $f(R,T)$ modified gravity formalism perspective. By investigating two classes of models with separable (minimal coupling model) and inseparable (non-minimal coupling model) parts of the Ricci scalar $R$ and trace of the energy-momentum tensor $T$, we find that only in the latter models it is possible to attain flat galaxy rotation curves.
