Results 1 to 10 of about 10,968 (239)
STATISTICAL ANALYSIS OF LARGE-SCALE STRUCTURE OF UNIVERSE
Odessa Astronomical Publications, 2017 While galaxy cluster catalogs were compiled many decades ago, other structural elements of cosmic web are detected at definite level only in the newest works. For example, extragalactic filaments were described by velocity field and SDSS galaxy distribution
A. V. Tugay
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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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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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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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On the ε cosmological parameter [PDF]
Serbian Astronomical Journal, 2015 In the paper On asymptotic solutions of Friedmann equations (Mijajlović et al. 2012), the theory of regularly varying functions in the sense of Karamata is applied in an asymptotic analysis of solutions of Friedmann equations.
Mijajlović Ž., Pejović N., Marić V.
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Radius-dependent Spin Transition of Dark Matter Halos
The Astrophysical Journal, 2023 A numerical detection of the radius-dependent spin transition of dark matter halos is reported. Analyzing the data from the IllustrisTNG simulations, we measure the halo spin vectors at several inner radii within the virial boundaries and investigate ...
Jun-Sung Moon, Jounghun Lee
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Cluster-counterpart Voids: Void Identification from Galaxy Density Field
The Astrophysical Journal, 2023 We identify cosmic voids from galaxy density fields under the theory of void–cluster correspondence. We extend the previous novel void-identification method developed for the matter density field to the galaxy density field for practical applications ...
Junsup Shim +3 more
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