Statistics – Computation
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.216..155a&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 216, Sept. 1, 1985, p. 155-164.
Statistics
Computation
Celestial Mechanics, Dissipation, Galactic Clusters, Galactic Evolution, Virial Theorem, Computational Astrophysics, Spatial Distribution
Scientific paper
In the present numerical treatment of dissipational cluster virialization, galaxy interactions may be multiple rather than binary during virialization, and it is noted that the use of the usual softening form for galaxies leads to a failure to follow the evolution of cluster binding energy. There is no reason, however, to believe that the merging of soft subsystems will lead toward a partition of binding energy, where merger products have excess internal binding energy at the expense of a loosening of the cluster as a whole, without recourse to radiative dissipation. It is concluded that it may be inaccurate to treat cluster virialization or hierarchical merging of soft subsystems in a dissipationless manner by which these effects are neglected.
Allen Anthony J.
Yabushita Shin
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