Voids in the center for astrophysics catalog

Details Voids in the center for astrophysics catalog Voids in the center for astrophysics catalog

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...302l..37b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 302, March 15, 1986, p. L37-L40.

Statistics

Computation

37

Astronomical Catalogs, Computational Astrophysics, Galactic Clusters, Cosmology, Mass Distribution, Probability Theory, Voids

Scientific paper

A general method to estimate the count probabilites of finding m galaxies in a given volume, as a function of the volume size, is presented for various m simultaneously. The precision obtained is the best permitted by the data. The method is applied to the two-dimensional CfA catalog, with m ranging from 0 to 5. The void probablity measured (m = 0) is compared with the theoretical predictions of the model published by Schaeffer in 1984. As a result, the free parameter of this model is determined to be unity, which leads to a definite prediction for the amplitude of the correlation functions at all orders.

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