Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230..648c&link_type=abstract
Astrophysical Journal, Part 1, vol. 230, June 15, 1979, p. 648-654.
Astronomy and Astrophysics
Astrophysics
67
Galactic Clusters, Galactic Structure, Red Shift, Spatial Distribution, Spiral Galaxies, Astronomical Maps, Frequency Distribution, Radial Velocity
Scientific paper
The redshifts (in units of 100 km/s) of the homogeneous sample of Sc I-Sc II galaxies with 14.0-15.0 mag obtained by Rubin et al. (1976) are placed at their galactic locations on an equal-area projection of the celestial sphere. This 'redshift map' and auxiliary maps with narrower 'redshift windows' illustrate the existence of the Hydra/Centaurus and Hercules/A2199 superclusters. They also reveal that the Coma cluster is part of a structure which includes not only A1367 but A779 as well, and may extend more than 200 Mpc across the celestial sphere. Similarly, the Perseus chain of clusters is part of a structure which fills a large fraction or all of the sky. By examining the redshift maps, one could gain the impression that the universe is an irregular three-dimensional 'net' - chains and clumps of galaxies separating vast voids.
Chincarini Guido
Rood Herbert J.
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