172 citations · 1.1k across the 34 of their papers we have counts for
4 papers · 1 filter
The Great Attractor and the Shapley Concentration
Krzysztof Bolejko, Charles Hellaby
We develop a non-linear relativistic model of the Shapley Concentration (SC) and its environs, including the Great Attractor (GA) and the Local Group (LG). We take the Shapley conc…
The Mass of the Cosmos
Charles Hellaby
We point out that the mass of the cosmos on gigaparsec scales can be measured, owing to the unique geometric role of the maximum in the areal radius. Unlike all other points on the…
Multicolour Observations, Inhomogeneity & Evolution
Charles Hellaby
We propose a method of testing source evolution theories that is independent of the effects of inhomogeneity, and thus complementary to other studies of evolution. It is suitable f…
Clumps into Voids
Nazeem Mustapha, Charles Hellaby
We consider a spherically symmetric distribution of dust and show that it is possible, under general physically reasonable conditions, for an overdensity to evolve to an underdensi…