Bias of galaxies and their high-order correlation functions.

Details Bias of galaxies and their high-order correlation functions. Bias of galaxies and their high-order correlation functions.

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997areps...1...43j&link_type=abstract

Astrophysics Reports, Special Issue, No. 2, p. 43 - 54

Astronomy and Astrophysics

Astrophysics

Galaxy Clustering: Space Distribution, Dark Matter: Space Distribution

Scientific paper

The author presents an analytical model for calculating the high-order moments of peaks and halos in the quasilinear regime. This model is used to interpret the observed high-order moments of galaxies and of clusters of galaxies. The observed skewness and kurtosis of the Abell and APM clusters are interpreted as a consequence of these clusters being recently formed massive halos. The high-order moments of the APM galaxies are consistent with the model predictions if and only if the galaxies are an unbiased tracer of the underlying mass distribution (on quasilinear scale). The author will propose the normal three-point correlation function as a further observational test to this important conclusion. Finally he presents the preliminary results of his determination of the three-point correlation functions for galaxies in the Las Campanas Redshift Survey.

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