Statistics – Computation
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...285...16s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 285, Oct. 1, 1984, p. 16-24.
Statistics
Computation
6
Background Radiation, Computational Astrophysics, Galactic Clusters, Astronomical Models, Kinetic Energy, Mass Ratios, Potential Energy, Spherical Shells
Scientific paper
The effects of different background distributions of unseen mass on the dynamic characteristics of simulated galaxy clusters are studied theoretically. N-body calculations were used to determine the behavior of the clusters based on known data for surface density, radial velocity profiles, and mass spectra. The results of the N-body calculations are considered to be in good agreement with previous simulations. It is shown that differences in the surface density and radial velocity profiles of systems with different backgrounds are not large if the typical size of sampling errors is taken into account. An exception was found for the case of systems with very massive particles and no background, where a central peak developed in the surface density profile (the Limber effect).
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