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Percolation Analysis of a Wiener Reconstruction of the IRAS 1.2 Jy Redshift Catalog

机译:IRAS 1.2 Jy Redshift目录的Wiener重构的渗流分析

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We present percolation analyses of Wiener reconstructions of the IRAS 1.2 Jy redshift survey. There are 10 reconstructions of galaxy density fields in real space spanning the range β = 0.1-1.0, where β = Ω0.6/b, Ω is the present dimensionless density, and b is the bias factor. Our method uses the growth of the largest cluster statistic to characterize the topology of a density field, where Gaussian randomized versions of the reconstructions are used as standards for analysis. For the reconstruction volume of radius R ≈ 100 h-1 Mpc, percolation analysis reveals a slight "meatball" topology for the real space, galaxy distribution of the IRAS survey.
机译:我们目前对IRAS 1.2 Jy redshift调查的Wiener重建进行渗滤分析。现实空间中存在10个重建的银河系密度场,范围为β= 0.1-1.0,其中β=Ω0.6/ b,Ω是当前的无量纲密度,b是偏置因子。我们的方法使用最大聚类统计量的增长来表征密度场的拓扑,其中将重建的高斯随机版本用作分析的标准。对于半径R≈100 h-1 Mpc的重建体积,渗流分析揭示了IRAS调查的真实空间,星系分布的轻微“肉丸”拓扑。

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