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
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
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
Primordial non-Gaussianity in the large scale structure of the Universe [PDF]
, 2010 Primordial non-Gaussianity is a potentially powerful discriminant of the physical mechanisms that generated the cosmological fluctuations observed today.
Desjacques, Vincent, Seljak, Uros
core +4 more sources
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
Searching For Integrated Sachs-Wolfe Effect Beyond Temperature Anisotropies: CMB E-mode Polarization-Galaxy Cross Correlation [PDF]
, 2005 The cross-correlation between cosmic microwave background (CMB) temperature anisotropies and the large scale structure (LSS) traced by the galaxy distribution, or sources at different wavelengths, is now well known.
Alessandro Melchiorri +9 more
core +2 more sources
CMBPol Mission Concept Study: Gravitational Lensing [PDF]
, 2008 Gravitational lensing of the cosmic microwave background by large-scale structure in the late universe is both a source of cosmological information and a potential contaminant of primordial gravity waves.
Alan Kogut +22 more
core +3 more sources
Cosmological Shock Waves in the Large Scale Structure of the Universe: Non-gravitational Effects [PDF]
, 2007 Cosmological shock waves result from supersonic flow motions induced by hierarchical clustering of nonlinear structures in the universe. These shocks govern the nature of cosmic plasma through thermalization of gas and acceleration of nonthermal, cosmic ...
Cen, Renyue +3 more
core +2 more sources
Large-scale Filamentary Structure around the Protocluster at Redshift z=3.1 [PDF]
, 2005 We report the discovery of a large-scale coherent filamentary structure of Lyman alpha emitters in a redshift space at z=3.1. We carried out spectroscopic observations to map the three dimensional structure of the belt-like feature of the Lyman alpha ...
Hajime Tamura +14 more
core +2 more sources
Consistency test of general relativity from large scale structure of the Universe [PDF]
, 2009 We construct a consistency test of General Relativity (GR) on cosmological scales. This test enables us to distinguish between the two alternatives to explain the late-time accelerated expansion of the universe, that is, dark energy models based on GR ...
+20 more
core +2 more sources