Results 11 to 20 of about 430,581 (306)
The Large-Scale Structure of the Universe [PDF]
Galaxies are not uniformly distributed in space. On large scales the Universe displays coherent structure, with galaxies residing in groups and clusters on scales of ~1-3 Mpc/h, which lie at the intersections of long filaments of galaxies that are >10 Mpc/h in length.
A Dressler +97 more
openaire +4 more sources
LARGE SCALE STRUCTURE OF THE UNIVERSE: CURRENT PROBLEMS [PDF]
The mean power spectrum of galaxies is compared with theoretical models. Possibilities to explain the observed power spectrum are discussed. Superclusters and voids form a quasi-regular lattice of mean cell size 120 Mpc; the main axis of the lattice is directed toward the supergalactic Y coordinate.
Einasto, J.
openaire +5 more sources
X-ray sources as tracers of the large-scale structure in the Universe [PDF]
We review the current status of studies of large-scale structure in the X-ray Universe. After motivating the use X-rays for cosmological purposes, we discuss the various approaches used on different angular scales including X-ray background multipoles ...
Barcons, X. +3 more
core +3 more sources
Systematic Effects on the Genus Topology of Large Scale Structure of the Universe [PDF]
Large-scale structure of the universe is a useful cosmological probe of the primordial non-Gaussianity and the expansion history of the universe because its topology does not change with time in the linear regime in the standard paradigm of structure ...
Choi, Yun-Young +6 more
core +2 more sources
Holographic principle and large scale structure in the universe
A reasonable representation of large scale structure, in a closed universe so large it's nearly flat, can be developed by extending the holographic principle and assuming the bits of information describing the distribution of matter density in the ...
Mongan, T. R.
core +3 more sources
The large-scale structure of the Universe [PDF]
Invited review to Nature (27 April 2006 issue), Early Universe Supplement, 34 pages, 6 figures (partially size reduced)
Springel, V., Frenk, C., White, S.
openaire +4 more sources
Ho’oleilana: An Individual Baryon Acoustic Oscillation?
Theory of the physics of the early hot universe leads to a prediction of baryon acoustic oscillations (BAOs) that has received confirmation from the pairwise separations of galaxies in samples of hundreds of thousands of objects.
R. Brent Tully +2 more
doaj +1 more source
Field-level Neural Network Emulator for Cosmological N-body Simulations
We build a field-level emulator for cosmic structure formation that is accurate in the nonlinear regime. Our emulator consists of two convolutional neural networks trained to output the nonlinear displacements and velocities of N -body simulation ...
Drew Jamieson +5 more
doaj +1 more source
We present two new diagnostics based on the intrinsic shape alignments of group/cluster size dark matter halos to disentangle the effect of f ( R ) gravity from that of massive neutrinos.
Jounghun Lee, Suho Ryu, Marco Baldi
doaj +1 more source
Large Scale Structure of the Universe [PDF]
How is the universe organized on large scales? How did this structure evolve from the unknown initial conditions of a rather smooth early universe to the present time? The answers to these questions will shed light on the cosmology we live in, the amount, composition and distribution of matter in the universe, the initial spectrum of density ...
openaire +4 more sources

