Results 31 to 40 of about 424,562 (307)
Prospects for 21 cm Galaxy Cross-correlations with HERA and the Roman High-latitude Survey
The Astrophysical Journal, 2023 The cross-correlation between the 21 cm field and the galaxy distribution is a potential probe of the Epoch of Reionization (EoR). The 21 cm signal traces neutral gas in the intergalactic medium and, on large spatial scales, this should be anticorrelated
Paul La Plante +4 more
doaj +1 more source
Plasma Suppression of Large Scale Structure Formation in the Universe [PDF]
, 2007 We point out that during the reionization epoch of the cosmic history, the plasma collective effect among the ordinary matter would suppress the large scale structure formation.
Chen, Pisin, Lai, Kwang-Chang
core +2 more sources
Classifying the large-scale structure of the universe with deep neural networks [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present the first application of deep neural networks to the semantic segmentation of cosmological filaments and walls in the Large Scale Structure of the Universe.
M. Aragon-Calvo
semanticscholar +1 more source
The Time Evolution of Mutual Information between Disjoint Regions in the Universe
Entropy, 2023 We study the time evolution of mutual information between mass distributions in spatially separated but casually connected regions in an expanding universe.
Biswajit Pandey
doaj +1 more source
Machine-learning Cosmology from Void Properties
The Astrophysical Journal, 2023 Cosmic voids are the largest and most underdense structures in the Universe. Their properties have been shown to encode precious information about the laws and constituents of the Universe.
Bonny Y. Wang +3 more
doaj +1 more source
, 2000 Catalogues of galaxies, clusters of galaxies and superclusters - sources of information to study the large-scale structure of the Universe are reviewed. The power spectrum of density perturbations, and the correlation function are discussed as principal ...
Einasto, Jaan
core +3 more sources
Cosmological Shock Waves and Their Role in the Large-Scale Structure of the Universe [PDF]
, 2003 We study the properties of cosmological shock waves identified in high-resolution, N-body/hydrodynamic simulations of a ΛCDM universe and their role on thermalization of gas and acceleration of nonthermal, cosmic-ray (CR) particles.
Dongsu Ryu +5 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 We present CAMELS-ASTRID, the third suite of hydrodynamical simulations in the Cosmology and Astrophysics with MachinE Learning (CAMELS) project, along with new simulation sets that extend the model parameter space based on the previous frameworks of ...
Yueying Ni +14 more
doaj +1 more source
Impact of ultralight axion self-interactions on the large scale structure of the Universe [PDF]
, 2017 Ultralight axions have sparked attention because their tiny mass m∼10-22 eV, which leads to a kiloparsec-scale de Broglie wavelength comparable to the size of a dwarf galaxy, could alleviate the so-called small-scale crisis of massive cold dark matter ...
V. Desjacques, A. Kehagias, A. Riotto
semanticscholar +1 more source
The Line-of-Sight Analysis of Spatial Distribution of Galaxies in the COSMOS2015 Catalogue
Universe, 2020 New observations of high-redshift objects are crucial for the improvement of the standard ΛCDM cosmological model and our understanding of the Universe.
Maxim Nikonov +4 more
doaj +1 more source