The two-points angular correlation function at large angular scale for Abell cluster of galaxies

Details The two-points angular correlation function at large angular scale for Abell cluster of galaxies The two-points angular correlation function at large angular scale for Abell cluster of galaxies

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993acasn..34..140w&link_type=abstract

Acta Astronomica Sinica (ISSN 0001-5245), vol. 34, no. 2, p. 147-152

Mathematics

Angular Correlation, Functions (Mathematics), Galactic Clusters, Boundary Conditions, Statistical Analysis

Scientific paper

Using a new method of the improved reference subsample, we reanalyzed the two-points angular correlation function for North Abell cluster of galaxies for b greater than 40 deg. Compared with the results based on the usual method, we find that the results obtained from two methods are consistent on the whole at small angular scale (theta less than 12 deg), but obvious differences are presented at large angular scale (12 deg less than theta less than 40 deg). The new results show that the Abell cluster of galaxies are probably still clustering at the scale up to 0 = 36 deg. That this interesting result was never found from the usual method is mainly due to the boundary effect of the finite size of the sample.

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