IRAS sources in the direction of rich clusters of galaxies

Details IRAS sources in the direction of rich clusters of galaxies IRAS sources in the direction of rich clusters of galaxies

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.256..719u&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 256, no. 4, June 15, 1992, p. 719-724.

Astronomy and Astrophysics

Astronomy

1

Far Infrared Radiation, Galactic Clusters, Infrared Astronomy Satellite, Point Sources, Infrared Astronomy, Red Shift, Spatial Distribution

Scientific paper

Results of a search for possible associations between point sources in the IRAS catalog and rich clusters of galaxies in the recently published Abell, Corwin and Olowin (ACO; (1989)) catalog are presented. It is found that the surface density of IRAS sources rises progressively above the background as the projected distance from the cluster center decreases below about 1 Mpc. The increase is most pronounced for the poorest clusters in the ACO catalog. At low redshift (z less than 0.03) the spatial distribution of ACO-IRAS associations is markedly anisotropic with a 3-sigma enhancement in the direction of the Great Attractor.

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