Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...388....9t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 388, March 20, 1992, p. 9-16. Research supported by NSF.
Astronomy and Astrophysics
Astronomy
78
Galactic Clusters, Galactic Structure, Universe, Red Shift, Relic Radiation, Sky Surveys (Astronomy), Southern Sky, Spatial Distribution
Scientific paper
Preliminary new information is presented to support the claims that there are structures on a scale of 0.1c lying in the plane of the Local Superclusters and of periodicity in galaxy clustering at intervals of 130/h sq Mpc, and that the Shapley concentration at 140/h Mpc might be a significant source of attraction contributing to the motion inferred from the microwave background dipole. It is found that for the clusters reported by Abell et al. (1989) it is possible to estimate distances from the magnitudes of the third and tenth brightest members to an accuracy of +/- 20 percent rms out to z of about 0.2-0.25. The previously reported concentration of rich clusters to the supergalactic equator extends across a domain of about 450/h Mpc, representing an approximately 6-sigma deviation from a Poissonian distribution and an approximately 3-sigma deviation when clustering is allowed for with a simple model.
Scaramella Roberto
Tully Brent R.
Vettolani Giampaolo
Zamorani Giovanni
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