Cluster Alignments in the Edinburgh/Milano Cluster Redshift Survey

Details Cluster Alignments in the Edinburgh/Milano Cluster Redshift Survey Cluster Alignments in the Edinburgh/Milano Cluster Redshift Survey

1994-12-05

arxiv.org/abs/astro-ph/9412014v1

Astronomy and Astrophysics

Astrophysics

postscript file of text (8pages), but not figures. Four figures available via anon ftp on oddjob.uchicago.edu (pub/align_fig*.

Scientific paper

We present here the results of a statistical search for cluster alignments using the Edinburgh/Milano cluster redshift survey. This survey is a unique cluster database which has been objectively constructed to help minimise the systematic biases associated with previous optical cluster catalogues. We find some evidence for cluster alignments out to spatial separations of $<10\mpc$, however, it is not statistically significant. On larger scales, we find no evidence, statistically significant or not, for cluster alignments. These results are in most disagreement with the recent observations of West and Plionis; both of whom see significant cluster alignments out to $\simeq30\mpc$ and beyond in the Abell \& Lick catalogues of clusters. Our findings are consistent with other searches for cluster alignments that do not involve these catalogues.

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