Linear redshift distortions and power in the IRAS Point Source Catalog Redshift Survey

被引：52

作者：

Hamilton, AJS

Tegmark, M

Padmanabhan, N

机构：

[1] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

[3] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA

[4] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2000年 / 317卷 / 01期

关键词：

cosmology : theory; large-scale structure of Universe;

D O I：

10.1046/j.1365-8711.2000.03888.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a state-of-the-art linear redshift distortion analysis of the recently published IRAS Point Source Catalog Redshift Survey (PSCz). The procedure involves linear compression into 4096 Karhunen-Loeve (signal-to-noise) modes culled from a potential pool of similar to 3x10(5) modes, followed by quadratic compression into three separate power spectra, the galaxy-galaxy, galaxy-velocity and velocity-velocity power spectra. Least squares-fitting to the decorrelated power spectra yields a linear redshift distortion parameter beta approximate to Omega(m)(0.6)/b=0.41(-0.12)(+0.13).

引用

页码：L23 / L27

页数：5

共 35 条

[1] Estimating the power spectrum of the cosmic microwave background [J].