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When clusters collide - A numerical Hydro/N-body simulation of merging galaxy clustersA 3D numerical simulation of two merging clusters of galaxies, using a hybrid Hydro/N-body code, is presented. The hydrodynamics of the code is solved by an Eulerian finite difference method. Initial results disclose that the X-ray emission of the dominant cluster becomes elongated and broadened; heating occurs at the core of the dominant cluster as a result of multiple shocks, and high velocity gas motions within the intracluster medium. It is predicted that clusters which have undergone recent mergers and do not have cooling flows will have high peculiar gas velocities and that the shocks and turbulence generated during the merger may power cluster-wide radio halos. Prolonged high-velocity gas motions through the dominant cluster core possibly play a major role in the formation and shaping of wide-angle tailed radio sources associated with central dominant galaxies. The N-body component of the simulation reveals the subcluster to be dispersed as it passes through the dominant cluster.
Document ID
19930051777
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Roettiger, Kurt
(NASA Headquarters Washington, DC United States)
Burns, Jack
(NASA Headquarters Washington, DC United States)
Loken, Chris
(New Mexico State Univ. Las Cruces, United States)
Date Acquired
August 16, 2013
Publication Date
April 20, 1993
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 407
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A35774
Funding Number(s)
CONTRACT_GRANT: NSF AST-90-12353
CONTRACT_GRANT: NAGW-5152
Distribution Limits
Public
Copyright
Other

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