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Possible Inhomogeneities in the Universe on Scales of 100–300 MPC from Observations with the 6-Meter Telescope

Published online by Cambridge University Press:  03 August 2017

A. I. Kopylov ,
D. Yu. Kuznetsov ,
T. S. Fetisova  and
V. F. Shvartsman
A. I. Kopylov
Affiliation:
Special Astrophysical Observatory, Stavropolskij Kraj, Niznij Arkhyz
D. Yu. Kuznetsov
Affiliation:
Physics Institute, AS USSR, Moskow
T. S. Fetisova
Affiliation:
Space Research Institute, Academy of Sciences USSR
V. F. Shvartsman
Affiliation:
Special Astrophysical Observatory, Stavropolskij Kraj, Niznij Arkhyz

Abstract

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In 1986 the programme “The Northern Cone of Metagalaxy” has been finished with the 6-meter Telescope. In the course of the programme redshifts of all very rich compact clusters of galaxies inside the cone with galactic latitude and indirect estimates of redshifts ZLB < 0.28 have been measured. The total volume of the investigated region is V ≈ 500·106 Mpc3 (we accept Hubble constant H=50 km/s Mpc−1). A number of possible indications of existence of inhomogeneities in the Universe on scales greater than 100 Mpc are obtained: 1) the void of 400 Mpc in size; 2) the flat stratum of 150 Mpc thickness and 1000 Mpc diameter; 3) two-point space correlation function ξ (R = 200–300 Mpc) = 0.5±0.2. We found no indications that topology of the Universe is non-Euclidean on scales of 20–200 Mpc.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 130: Large Scale Structures of the Universe , 1988 , pp. 129 - 137
Copyright
Copyright © Reidel 1988 

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