An X-ray optical study of 26 Abell clusters

Details An X-ray optical study of 26 Abell clusters An X-ray optical study of 26 Abell clusters

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...243...38r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 243, no. 1, March 1991, p. 38-48. ASTRON-supported research.

Astronomy and Astrophysics

Astronomy

22

Elliptical Galaxies, Galactic Clusters, Galactic Evolution, Image Processing, X Ray Astronomy, Data Bases, Gravitational Fields, Heao 2, Red Shift

Scientific paper

Results of an X-ray optical study of 26 Abell clusters are presented. Einstein IPC images of clusters, taken from our complete sample of 107 clusters with richness 1 or greater and with redshift less than or equal to 0.1, to measure X-ray position angles are used. It is shown that X-ray position angles are in good agreement with those taken from a concurrent study by McMillan et al. A very good agreement between the centroid of the X-ray emission and the position of the first ranked galaxy is found. A good correlation between the cluster position angle measured using X-rays, the cluster orientation derived from the galaxy distribution and orientation of the first ranked galaxy are observed.

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