Abell 154 and Virgo - Pilot study for H I observations of distant clusters of galaxies
- Lafayette College, Easton, PA (USA)
As a test of procedures required to study the H I contents of spiral galaxies in distant clusters of galaxies, the cluster Abell 154 has been observed from Arecibo. Fourteen candidate detections were found in two regions of the cluster comprising about 10 percent of the cluster area. These results are compared in detail with those expected for the exhaustively studied Virgo cluster displaced to the distance of A 154. Most of the 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 A 154 profiles are systematically broader than expected 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 A 154 distance, no significant evidence is found for H I deficiency in A 154. 46 refs.
- OSTI ID:
- 5756940
- Journal Information:
- Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 101; ISSN 0004-6256; ISSN ANJOA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pattern of H I deficiency in the Virgo cluster
On systematic errors in distance estimates of the Virgo cluster and the intrinsic scatter in the Tully-Fisher relation
HI-deficient spiral galaxies in the Coma cluster and Abell 1367
Journal Article
·
Tue Jul 01 00:00:00 EDT 1986
· Astrophys. J.; (United States)
·
OSTI ID:7021123
On systematic errors in distance estimates of the Virgo cluster and the intrinsic scatter in the Tully-Fisher relation
Journal Article
·
Tue Aug 01 00:00:00 EDT 1989
· Astrophysical Journal; (USA)
·
OSTI ID:5594933
HI-deficient spiral galaxies in the Coma cluster and Abell 1367
Journal Article
·
Tue Oct 31 23:00:00 EST 1978
· Astrophys. J.; (United States)
·
OSTI ID:6136353