Mathematics – Logic
Scientific paper
Mar 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...228..684t&link_type=abstract
Astrophysical Journal, Part 1, vol. 228, Mar. 15, 1979, p. 684-695.
Mathematics
Logic
34
Computerized Simulation, Cosmology, Galactic Clusters, Many Body Problem, Stellar Motions, Astronomical Catalogs, Astronomical Models, Error Analysis, Estimating, Red Shift
Scientific paper
Two of the previously presented N-body simulations of galaxy clustering are analyzed in terms of the detailed dynamical and morphological properties of their binaries, groups, and clusters. The analysis is closely analogous to the studies of groups among bright Zwicky-catalog galaxies by Turner and Gott (1976, 1977). The simulated groups, particularly those in the Omegazero = 0.1 and n = -1 model, resemble the observed groups. The models provide complete (position, velocity, mass) information on group and field 'galaxies' identified using the Turner and Gott surface-density enhancement procedure. These data are used to assess the validity of the membership assignments, the influence of non-Hubble motions on descriptions of the clustering, the accuracy and stability of various M/L estimators, the significance of field galaxies, and the statistical properties of binary systems.
Aarseth Sverre J.
Blanchard N. T.
Gott Richard J. III
Mathieu Robert D.
Turner Edwin L.
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