The concept of dark matter (DM) hypothesis comes out as a result from the input of the observed flat rotational velocity. With the assumption that the galactic halo is pseudo-spheroidal and filled with charged perfect fluid, we have obtained a solution which has inkling to a (nearly) flat universe, compatible with the modern day cosmological observations. Various other important aspects of the solution such as attractive gravity in the halo region and the stability of the circular orbit are also explored. Also, the matter in the halo region satisfies the known equation of state which indicates its non-exotic nature.

中文翻译：

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伪球体几何中带电荷的暗物质晕

暗物质（DM）假说的概念是由观测到的平面旋转速度的输入产生的。假设银河晕是伪球体并充满了带电的完美流体，我们得到了一个与（几乎）平坦的宇宙有关的解，与现代宇宙学观测相兼容。还探讨了该解决方案的各种其他重要方面，例如晕区的吸引力和圆形轨道的稳定性。此外，晕区中的物质满足已知的状态方程，表明其非奇异性质。