No CrossRef data available.
Published online by Cambridge University Press: 25 May 2016
This paper is part of a more extensive study of the large voids in spatial volumes both wide and deep. Three samples of optical tracers with spectroscopically measured redshifts in a volume with b≥30° and z≤0.14 have been extracted from the catalogue of Lebedev and Lebedeva (1986) and the NASA/IPAC Extragalactic Database (NED):
(1) a homogeneous sample of 277 rich Abell clusters
(2) an inhomogeneous sample of 969 objects: rich and poor Abell clusters, Zwicky clusters, other clusters, and groups
(3) a sample of 18 623 NED galaxies.