Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984comap..10...47g&link_type=abstract
Comments on Modern Physics, Part C - Comments on Astrophysics (ISSN 0146-2970), vol. 10, Feb. 1984, p. 47-52.
Astronomy and Astrophysics
Astrophysics
16
Galactic Clusters, Statistical Analysis, Cosmology, Gravitational Lenses, Nomographs, Quasars, Red Shift, Substructures, Virgo Galactic Cluster
Scientific paper
Recent research on substructure in clusters and superclusters of galaxies is critically surveyed, with an emphasis on the distinction (based on physical size and dynamic state) between the two classes of structures. The cosmological and large-scale structural implications of substructure in rich clusters are analyzed, using N-body-simulation results, and illustrated for the clusters A98 and A548. Consideration is also given to gravitational lensing of distant quasars by intervening clusters and the interpretation of the matter distribution on scales larger than about 5 Mpc. It is determined that A98 and A548 are superclusters.
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