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Gas deficiency in cluster galaxies - A comparison of nine clusters

1985/05/01 by R. Giovanelli, Riccardo Giovanelli, M. P. Haynes +1 · 346 citations
Physics and Astronomy · #Active galactic nucleus #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Cluster (spacecraft) #Disc #Elliptical galaxy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Intergalactic medium #Intergalactic travel #Intracluster medium #Physics #Radio galaxy #Redshift #Scientific Research and Discoveries #Spiral galaxy

paper · doi:10.1086/163170

published in The Astrophysical Journal 292, 404 (IOP Publishing)

openalex publication_date 1985/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11

Abstract

Using a combined sample of previously published results and new high-sensitivity observations, the neutral hydrogen contents of galaxies in nine clusters have been compared with those of isolated galaxies. Of the nine clusters, six show substantial H I deficiency, to varying degrees. The three clusters whose galaxies contain normal H I masses contain a higher proportion of spirals, and are not X-ray sources. In the clusters which show H I deficiency, the depletion of H I gas, exceeding factors of 10, strongly correlates with the radial distance of a galaxy from the cluster center. The data lead to the conclusion that the occurrence of H I deficiency is correlated with the presence of a hot X-ray intracluster medium, and that while perhaps not responsible for the complete mechanism of morphological segregation in clusters, an ongoing interaction process is active through the cores of X-ray clusters.

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