Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287l..59r&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 287, Dec. 15, 1984, p. L59-L63.
Astronomy and Astrophysics
Astrophysics
34
Galactic Clusters, Spatial Distribution, Statistical Analysis, Histograms, Integral Equations, Kolmogoroff-Smirnoff Test, Luminosity, Poisson Density Functions, Voids
Scientific paper
A quantitative statistical comparison is made between the voids in the three-dimensional galaxy distribution and several n-body simulations. The statistic used is the distribution of the distances to the nearest neighboring galaxy from each point in a regular grid filling space. This statistic is calculated for two volume-limited samples of galaxies and for a magnitude-limited sample in which the distances are corrected to eliminate the effect of the selection bias on the observed density of galaxies. It is found, using a Kolmogorov-Smirnov test, that the voids in the galaxy distribution are significantly larger than voids in the n-body simulations. The largest voids in the volume-limited galaxy samples have radii equal to about 2-3 times the inverse cube root of the mean galaxy density.
Ryden Barbara S.
Turner Edwin L.
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