Correlation Function and Power Spectra in Cosmology

Details Correlation Function and Power Spectra in Cosmology Correlation Function and Power Spectra in Cosmology

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000eaa..booke2136b&link_type=abstract

"Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 2136. Bristol: Institute of Physics Publishing, 2001

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Cosmology, Cosmological Models And Concepts

Scientific paper

The galaxy correlation function is a measure of the degree of clustering in either the spatial (ξ(r)) or the angular distribution (w(θ)) of galaxies. The power spectrum is the Fourier transform of the correlation function. The spatial two-point or autocorrelation function is defined as the excess probability, compared with that expected for a random distribution, of finding a pair of galaxies at ...

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