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Date and Time of the Query: 2019-06-16 T07:49:13 PDT
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For refcode 1991AJ....101..325H:
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1991AJ....101..325H ABELL 154 AND VIRGO: PILOT STUDY FOR H I OBSERVATIONS OF DISTANT CLUSTERS OF GALAXIES G. LYLE HOFFMAN AND HAYES L. WILLIAMS Department of Physics, Lafayette College, Easton, Pennsylvania 18042-1782 Received 30 July 1990; revised 8 October 1990 ABSTRACT As a test of procedures required to study the H I contents of spiral galaxies in distant clusters of galaxies, we have observed the cluster Abell 54 from Arecibo.^2^. Fourteen candidate detections were found in two regions of the cluster comprising about 10% of the cluster area. We compare these results in detail with those we would expect to obtain for the exhaustively studied Virgo cluster displaced to the distance of A154. Most of our candidate detections are likely to be the combined profiles of two or more spiral galaxies, many of them too faint to appear on the list of morphological types classified by Dressler (1980). Any attempt to identify these H I signals with known bright spirals is problematic at best. The A154 profiles are systematically broader than we would expect for Virgo, but a crude application of the Tully-Fisher correlation indicates that they are still consistent with available photometric data. While the H I deficiency in Virgo would still be apparent at the A154 distance, we find no significant evidence for HI deficiency in A154.
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