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The Muenster Redshift Project. II. The Redshift Space Galaxy Power Spectrum

机译:明斯特Redshift项目。二。红移空间银河系功率谱

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The redshift space galaxy power spectrum is estimated using magnitude-limited samples of up to 87,558 galaxies with redshifts z ≤ 0.2 and magnitudes rF ≤ 18.0 mag. Although the random redshift errors are comparatively large (σz = 0.031), the present survey sample gives reliable power spectral densities for wavenumbers 0.0125 ≤ k ≤ 0.15 h Mpc–1 corresponding to wavelengths 40 ≤ λ ≤ 500 h–1 Mpc. The Muenster Redshift Project data give a clear indication for the existence of a turnover in the shape of the power spectrum near wavelengths of 160 h–1 Mpc.
机译:红移空间星系功率谱是使用多达87,558个银河系的幅度受限样本进行估计的,其中红移z≤0.2,幅度rF≤18.0 mag。尽管随机红移误差相对较大(σz= 0.031),但本调查样本给出了与波长40≤λ≤500 h-1 Mpc对应的波数0.0125≤k≤0.15 h Mpc-1的可靠功率谱密度。 Muenster Redshift Project数据清楚地表明在160 h–1 Mpc波长附近存在功率谱形状转换。

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