Abstract
The apparatus of a correlation gamma function is used to analyze a sample of 2dFGRS galaxies. We suggest a modified gamma-function algorithm with nonintersecting working spheres, which ensures that the counts are independent at each step. The method of nonintersecting spheres has revealed a change in the regime of clustering (a break of the gamma function) on a scale of 10–16h −1 Mpc (H 0 = 65 km s−1 Mpc−1). The standard method yields a scale of 30h −1 Mpc. An artificial distribution is used as an example to show that, in some cases, the modified algorithm is more responsive to a mixture of distributions with various properties than the standard method.
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Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 31, No. 12, 2005, pp. 883–887.
Original Russian Text Copyright © 2005 by Tikhonov.
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Tikhonov, A.V. Analysis of the clustering of 2dFGRS galaxies using the method of a modified correlation gamma function. Astron. Lett. 31, 787–791 (2005). https://doi.org/10.1134/1.2138765
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DOI: https://doi.org/10.1134/1.2138765