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Large scale structure of the Universe: Introduction [PDF]
, 1997 The changes of main paradigms on the structure and evolution of the Universe are reviewed. Two puzzles of the modern cosmology, the mean density of matter and the regularity of the Universe on large scales, as well as the possibility to solve these puzzles by the introduction of more complicated form of inflation, are discussed.
J. Einasto
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The large-scale structure of the Universe [PDF]
Nature, 2006 Invited review to Nature (27 April 2006 issue), Early Universe Supplement, 34 pages, 6 figures (partially size reduced)
Springel, V., Frenk, C., White, S.
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Field-level Neural Network Emulator for Cosmological N-body Simulations
The Astrophysical Journal, 2023 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
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Ho’oleilana: An Individual Baryon Acoustic Oscillation?
The Astrophysical Journal, 2023 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
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The Galaxy Number Density Profile of Halos
The Astrophysical Journal, 2023 More precise measurements of galaxy clustering will be provided by the next generation of galaxy surveys, such as DESI, WALLABY, and the Square Kilometre Array.
Fei Qin +3 more
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Reoriented Memory of Galaxy Spins for the Early Universe
The Astrophysical Journal, 2023 Galaxy spins are believed to retain the initially acquired tendency of being aligned with the intermediate principal axis of the linear tidal field, which disseminates the prospect of using them as a probe of early universe physics. This roseate prospect,
Jun-Sung Moon, Jounghun Lee
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Large Scale Structure of the Universe [PDF]
Symposium - International Astronomical Union, 1997 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 ...
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An Observed Transition of Galaxy Spins on Void Surfaces
The Astrophysical Journal Letters, 2023 In linear theory, the galaxy angular momentum vectors that originate from initial tidal interactions with surrounding matter distribution intrinsically develop perpendicular alignments with the directions of maximum matter compression, regardless of ...
Jounghun Lee, Jun-Sung Moon
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Large scale structure of the Universe [PDF]
AIP Conference Proceedings, 2010 10 pages, 9 figures; The Sun, the Stars, the Universe and General Relativity, International conference in honor of Ya. B. Zeldovich 95th Anniversary, April 20 - 23, 2009, Minsk; Eds. R.
Jaan Einasto +2 more
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The Astrophysical Journal, 2023 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
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