A DWT Power Spectrum Analysis of PSCz Galaxies

Details A DWT Power Spectrum Analysis of PSCz Galaxies A DWT Power Spectrum Analysis of PSCz Galaxies

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001chjaa...1..200y&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 1, p. 200-212

Astronomy and Astrophysics

Astrophysics

Large-Scale Structure Of Universe, Methods: N-Body Simulations

Scientific paper

The power spectrum estimator based on the Discrete Wavelet Transformation (DWT) is applied to detect the clustering power in the IRAS Point Source Catalog Redshift Survey (PSCz). Comparison with mock samples extracted from N-body simulation shows that the DWT power spectrum estimator could provide a robust measurement of banded fluctuation power over a range of wavenumbers 0.1~ 2.0 hpMpc. We have fitted three typical CDM models (SCDM, τCDM and ΛCDM) using the Peacock-Dodds formula including non-linear evolution and redshift distortion. We find that, our results are in good agreement with other statistical measurements of the PSCz.

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