A comparison of simulated galaxy clustering models with observations

Details A comparison of simulated galaxy clustering models with observations A comparison of simulated galaxy clustering models with observations

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...105...21z&link_type=abstract

Astronomy and Astrophysics, vol. 105, no. 1, Jan. 1982, p. 21, 22.

Astronomy and Astrophysics

Astrophysics

1

Astronomical Models, Galactic Clusters, Many Body Problem, Dynamic Models, Power Spectra, Statistical Distributions

Scientific paper

The statistical reduction method is used to compare a sequence of N-body galaxy clustering models with the actual distribution of galaxies, and it is found that while the more evolved dynamical models exhibit similarities with the observed sample, the simulated models indicate a pronounced maximum for a small characteristic cluster size. By contrast, the observed cluster size distribution is almost entirely flat. The method described is recommended as an alternative to such current methods as covariance, multiplicity functions, and the power spectrum.

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