新引力宇宙度规计算星系质量和宇宙物质密度的新分析

New Analysis of Calculating Galaxy’s Mass and Universe’s Material Density by New Gravity Universe Metric

摘要: 寻找出宇宙红移与距离的新方程，由Schwarzschild度规球对称导出不旋转黑洞内的度规，又是新引力宇宙度规。与改进Einstein引力红移和Newton引力定律结合，对星系质量做新的计算，结果约为文献计算值的10％，分析知Newton引力定律不能适用于全部星系自转曲线，只适用于有限自转曲线。但不是最后的结论，这样的分析又不能全否定无用，有其合理的分析。新引力宇宙的度规可计算出可观测的球体积，在黎曼几何中没有用红移表述准确的体积计算，并用上世纪定出的宇宙视界值计算出合理的宇宙物质密度和星系质量。推出不可测物质的质量是可测物质的6倍。可推知暗能量是宇宙稀簿物质极弱引力效应累积贡献的，因新计算星系质量小那么星系晕中暗物质应该很少，会给直测带来困难。Einstein在上世纪50年代前猜想无限宇宙，新引力宇宙的度规是他的引力场方程的1个解，证实了他的猜想。广义相对论主宰全宇宙。

Abstract: The author gets the new equation of universe redshift and distance and uses spherical symmetry of Schwarzschild metric to get metric of irrotional black hole, which is also called new gravity cosmic metric. Together with improving Einstein gravity redshift and Newton gravity law, the author calculates the mass of galaxy again to get a new value that is only 10% of the value calculated in the literature. Through analysis, it can be learned that Newton gravity law isn’t appropriate for all galactic rotation curves and is just for limited galactic rotation curves. But this is not the final conclusion. We can’t say this analysis is useless because it has its reasonable part. New gravity cosmic metric can be used to calculate the volume of sphere that can be observed. There’s no presentation of using redshift to calculate accurate volume in Riemannian geometry. And value of cosmic horizon that was settled last century is used to figure out rational density of cosmic matter and galaxy’s mass. Mass of measurable matter is 6 times as big as that of un-measured matter. It can be learned that dark energy is accumulated by feeble gravity effect of cosmic rarefied matter. There is little dark matter in galactic halo for the mass of galaxy recal-culated by author is small. And that will bring difficulty to the direct observation. Einstein put forward the guess of unlimited universe in the 1950s. And the metric of new gravity universe is one of the solutions of his gravitational field equation, which verifies his guess. General relativi-ty dominates the whole universe.