Groups of galaxies and large-scale structure

Details Groups of galaxies and large-scale structure Groups of galaxies and large-scale structure

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..535w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. 535-542.

Astronomy and Astrophysics

Astrophysics

47

Galactic Clusters, Galactic Structure, Cosmology, Galactic Evolution, Spatial Distribution

Scientific paper

The orientations of groups of galaxies are examined, and it is shown that, like rich clusters of galaxies, groups exhibit some tendency to be aligned with their neighbors on scales extending to about (15-30)/h Mpc. This would seem to imply that group formation must have occurred after the formation of superclusters; thus, it is argued that the favored cosmogonic scenarios are those in which the formation of structure in the universe proceeds from large to small scales.

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