Linear Redshift Distortions and Power in the PSCz Survey
نویسندگان
چکیده
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-Loève (signal-to-noise) modes culled from a potential pool of ∼ 3× 10 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 β ≈ Ω m /b = 0.41 +0.13 −0.12.
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