Large Scale Structure of the Universe [PDF]
, 2012 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 ...
A Dressler +97 more
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Signatures of Primordial Gravitational Waves on the Large-Scale Structure of the Universe [PDF]
Physical Review Letters, 2022 We study the generation and evolution of second-order energy-density perturbations arising from primordial gravitational waves. Such "tensor-induced scalar modes" approximately evolve as standard linear matter perturbations and may leave observable ...
Pritha Bari +4 more
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Classifying the large-scale structure of the universe with deep neural networks [PDF]
Monthly notices of the Royal Astronomical Society, 2019 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.
Miguel A. Aragón-Calvo
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Shock‐heated Gas in the Large‐Scale Structure of the Universe [PDF]
, 2005 Cosmological shock waves are a ubiquitous consequence of cosmic structure formation. They play a major role in heating baryonic gas in the large-scale structure of the universe. In this contribution we study the shock-heated gas in connection with shocks
Hyesung Kang +7 more
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Large-Scale Structure of the Universe and Cosmological Perturbation Theory [PDF]
, 2001 We review the formalism and applications of non-linear perturbation theory (PT) to understanding the large-scale structure of the Universe. We first discuss the dynamics of gravitational instability, from the linear to the non-linear regime.
Bernardeau, F +3 more
core +5 more sources
Searching for a dipole modulation in the large-scale structure of the Universe [PDF]
, 2014 Several statistical anomalies in the CMB temperature anisotropies seem to defy the assumption of a homogeneous and isotropic universe. In particular, a dipole modulation has been detected both in WMAP and Planck data. We adapt the methodology proposed by
R. Fernández-Cobos +5 more
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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 +4 more sources
Systematic Effects on the Genus Topology of Large Scale Structure of the Universe [PDF]
, 2014 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
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 +6 more sources
Holographic Principle and Large Scale Structure in the Universe
, 2011 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 ...
T. R. Mongan
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