AAS 203rd Meeting, January 2004
Session 68 Galaxy Clusters and Large Scale Structure III
Oral, Tuesday, January 6, 2004, 2:00-3:30pm, Centennial III

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[68.03] Examination of Abell Clusters of Galaxies in Local Super-Cluster Environments

K. S. Krughoff (University of Maine)

Galaxy clusters are excellent tracers of the distribution of luminous matter in the local universe. The MX Abell Cluster Redshift Survey, a statistically complete sample of Abell clusters to z=0.14, was recently completed. The large volume covered by this survey makes it possible to not only examine individual clusters of galaxies, but the regions surrounding them as well. I present several analyses of properties of Abell clusters of galaxies as functions of large scale structure in their surrounding regions.

I re-examine the relationship between Wide Angle Tail (WAT) bending direction and super-cluster axis orientation. This new study does not support previous work suggesting that WAT bending directions tend to align with the local super-cluster major axis. I also examine the tendency for individual cluster elongations to be in the same direction as the elongation of the surrounding region.

I use the NOAO VLA Sky Survey source catalog to compare radio source clustering and optical galaxy clustering. I test the relationship between cluster source numbers and super-cluster density. Similar studies of cluster richness, velocity dispersions, and other cluster properties versus neighborhood density are presented.

Portions of this research were funded by NASA through the Maine Space Grant Consortium.

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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.