论文标题
ii。 gr源术语$ t^{μν} $用于暗物质
II. A GR Source Term $T^{μν}$ For Dark Matter
论文作者
论文摘要
建议与暗物质骨料相关的能量源项（论文I中描述的属性）提出两种形式。两者都有较大的压力样组件，主导着密度项。使用一种形式的一个简单的螺旋星系光环的模型，可以与某些星系的“平坦”外旋转曲线（包括银河系）匹配。它还可以代表小螺旋星系（例如M33）的上升外旋转曲线。参见图。 1，2。晕黑物质（DM）“缺失质量”是由于忽略压力项对源张量的贡献而导致的。 对银河系旋转曲线的分析给出了表征光环所在的DM的介质的参数。.暗物质不能比$ r \ sim 4 $ kpc更接近银河系中心。它以$ r_h \ simeq 8 $ kpc达到最大通量，然后随着距离而迅速跌落。希望通过分析其他银河旋转曲线，这些模型可以用于推断出层状DM物质的性质。 DM的$ T^{μν} $的另一种形式在宇宙学中很有用。然后，需要将（非恒定的）宇宙学项$λ$添加到爱因斯坦的方程中，以便允许使用普通物质的标准状态关系的dm。我们建议至少某些“深色能量”的结果，这一要求的结果可能是真实的；它仅仅是由于采用不正确的DM状态方程而导致的。
Two forms are suggested for the energy-momentum source term associated with an aggregate of dark matter (with the properties described in Paper I). Both have large pressure-like components which dominate the density terms. Using one form a simple model of the spiral galaxy halos is developed which can match the observed `flat' outer rotation curves of some galaxies,including the Milky Way. It can also represent the ascending outer rotational curves of small spiral galaxies such as M33. See Figs. 1, 2. The halo dark matter (DM)`missing mass' results from ignoring the pressure term's contribution to the source tensor. The analysis of the Milky Way rotation curve gives parameters characterizing the DM intergalactic medium in which the halo is situated.. The dark matter cannot come closer to the galactic center than $R \sim 4$ kpc. It reaches a maximum flux at $R_h \simeq 8$ kpc and then falls rapidly with distance. It is hoped that by analyzing other galactic rotation curves these models can be used to infer properties of the intergalactic DM matter. The other form for $T^{μν}$ for DM is useful in cosmology. Then a (non-constant) cosmological `constant' term $Λ$ needs to be added to Einstein's equation in order to allow use for DM of the standard equation of state relation of ordinary matter.. We suggest that at least some of the `dark energy' present results from this requirement and may not be real; it simply results from adopting an improper equation of state for DM.
