Percolation analysis and void probability functions of galaxies with different morphological type
Abstract
This paper presents tests for possible morphology segregations of galaxies on large scales by using percolation analysis and the void probability function. It is found that galaxies of different morphological types show systematically different percolation behaviors; the differentiation can exist on scales larger than the correlation length of galaxies. Such morphology dependence also shows in the mean value of the twopoint correlation function ξ^^(V) determined by the variance or galaxy counts in the volume V. The void probability function P_0_, when expressed as a function of N^^ = n^^V, the mean number of galaxies in the tested volume, differs systematically for galaxies of different types, with earlier type galaxies giving larger P_0_. When considered with respect to the scaling variable q = N^^{xi}^^, the scaled void functions of the form (logP_0))/N^^ for different type galaxies agee with each other to the ~ σ level.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 November 1990
 Bibcode:
 1990A&A...238....3M
 Keywords:

 Galactic Clusters;
 Galactic Structure;
 Probability Distribution Functions;
 Error Analysis;
 Galactic Evolution;
 Percolation;
 Red Shift;
 Astrophysics