Substructures and galaxy orientations in clusters. I. The cluster Abell 754

Details Substructures and galaxy orientations in clusters. I. The cluster Abell 754 Substructures and galaxy orientations in clusters. I. The cluster Abell 754

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...339..709g&link_type=abstract

Astronomy and Astrophysics, v.339, p.709-718 (1998)

Astronomy and Astrophysics

Astrophysics

17

Methods: Statistical, Galaxies: Clusters: General, Galaxies: Clusters: Individual: A 754

Scientific paper

We present a general description of the rich cluster of galaxies Abell 754, including a discussion of some aspects concerning its evolution, and present an analysis of the orientations of the galaxies in the cluster region. Previous studies from X-ray data and galaxy distributions have provided evidence for pronounced subclustering in this cluster. In this light, our aim has been to examine non-random effects in the galaxy orientations in rich clusters with particular regard to the presence of subclustering. Our results do provide evidence for non-random alignment of the galaxies in Abell 754 and confirm the presence of subclustering within this cluster. We intend to continue our investigations by studying, in a similar manner, other clusters the results for which will be published in due course.

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