The Sponge-like Topology of Large-Scale Structure in the Universe
The Sponge-like Topology of Large-Scale Structure in the Universe
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DOI：
10.1086/164347
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发表时间：
1986-07
期刊：
影响因子：
--
通讯作者：
J. Gott;M. Dickinson;A. Melott
中科院分区：
文献类型：
--
作者：
J. Gott;M. Dickinson;A. Melott
我们描述和应用的定量测量的拓扑结构的大规模：属的密度轮廓在平滑的密度分布。对于随机相位（高斯）密度场，每单位体积的平均亏格表现出对阈值密度的普遍依赖性，具有可以从功率谱计算的归一化因子。观测样本的拓扑结构与随机相位、冷暗物质模型一致。
We describe and apply a quantitative measure of the topology of large scale structure: the genus of density contours in a smoothed density distribution. For random phase (gaussian) density fields, the mean genus per unit volume exhibits a universal dependence on threshold density, with a normalizing factor that can be calculated from the power spectrum. The topology of the observational sample is consistent with the random phase, cold dark matter model.