1981•The Astrophysical JournalRequires access
Observations of the two components of the Abell 98 cluster of galaxies
Joseph P. Henry, M. J. Henriksen, P. A. Charles, John R. Thorstensen
Open publisher page 22 citations
Abstract
X-ray and optical observations of A98 show that the cluster is composed of two subclusters. From an estimate of the mass and velocity differences, the two components may merge in about a billion years. These data support the hierarchical clustering model in which clusters occur on all size scales, with larger clusters being formed from mergers of smaller ones.