Mathematics – Logic
Scientific paper
May 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...292..404g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 292, May 15, 1985, p. 404-425.
Mathematics
Logic
280
Extragalactic Radio Sources, Galactic Clusters, Galactic Evolution, Hydrogen Clouds, Intergalactic Media, Neutral Gases, Spiral Galaxies, Centimeter Waves, Radial Distribution, Radial Velocity, X Ray Sources
Scientific paper
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.
Giovanelli Riccardo
Haynes Martha P.
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