large-scale structure

large-scale structure

The structure of matter on the largest scales (greater than 100 megaparsecs), revealed by the results from large-scale redshift surveys of galaxies. This structure consists of very long filaments of matter surrounding huge voids or bubbles that are empty of matter. The largest superclusters are elongated, and scattered clusters of galaxies often link the ends of these superclusters into filaments. The filaments surround empty voids, the first of which was discovered in Boötes in 1981 and is about 100 Mpc across. Most of the matter in the Universe lies in the filaments, which occupy only 1% or 2% of the volume of space. The largest coherent structure so far detected in redshift surveys is the Great Wall at a distance of about 95 Mpc. This structure forms a thin sheet less than 10 Mpc thick but spans an area 80 by 225 Mpc.
References in periodicals archive ?
The MWA also has superb sensitivity allowing the large-scale structure of Centaurus A to be imaged in great detail," McKinley said.
On Tuesday, the DES presented research on the "most accurate measurement ever made of the present large-scale structure of the universe," according to (http://news.
Department of Energy's (DOE) Fermi National Accelerator Laboratory, DES scientists will unveil the most accurate measurement ever made of the present large-scale structure of the universe.
Bolshoi, for instance, is one of the most accurate cosmological simulations of the evolution of the large-scale structure of the universe (S&T: July 2012, p.
The existence of dark matter is known from its gravitational effects on visible matter, radiation, and the large-scale structure of the universe.
Five lectures from the course cover re-ionization of the intergalactic medium, weak gravitational lensing, large-scale structure observations, galaxy formation, and cosmology from theory to data and from data to theory.
That space will be St Mary's Heritage Centre in Gateshead, where the large-scale structure will be on display from October 25 to 31 (except Monday, Oct 27), from 10am to 4pm.
Caption: A vast web of dark matter, simulated as black filaments in the planetarium show Dark Universe, provides the universe's large-scale structure.
the mass gap, which "is in principle responsible for the large-scale structure of the QCD ground state, and thus for its non-perturbative phenomena at low energies") rather than other massive particles.
That is an era that we need to study if we are going to understand the large-scale structure of the universe.
They develop cosmological perturbation theory in reference to the large-scale structure of the universe.
Dark matter is a theoretical unseen material that appears to shape the large-scale structure of the universe yet whose nature remains unknown.

Full browser ?