Primordial non-Gaussianity from the large-scale structure

V Desjacques, U Seljak - Classical and Quantum Gravity, 2010 - iopscience.iop.org
Primordial non-Gaussianity is a potentially powerful discriminant of the physical
mechanisms that generate the cosmological fluctuations observed today. Any detection of …

Minkowski functionals of SDSS-III BOSS: hints of possible anisotropy in the density field?

S Appleby, C Park, P Pranav, SE Hong… - The Astrophysical …, 2022 - iopscience.iop.org
We present measurements of the Minkowski functionals extracted from the SDSS-III BOSS
catalogs. After defining the Minkowski functionals, we describe how an unbiased …

Primordial Non‐Gaussianity in the Large‐Scale Structure of the Universe

V Desjacques, U Seljak - Advances in Astronomy, 2010 - Wiley Online Library
Primordial non‐Gaussianity is a potentially powerful discriminant of the physical
mechanisms that generated the cosmological fluctuations observed today. Any detection of …

The new horizon run cosmological N-body simulations

J Kim, C Park, G Rossi, SM Lee, JR Gott III - arXiv preprint arXiv …, 2011 - arxiv.org
We present two large cosmological N-body simulations, called Horizon Run 2 (HR2) and
Horizon Run 3 (HR3), made using 6000^ 3= 216 billions and 7210^ 3= 374 billion particles …

Topology and geometry of Gaussian random fields I: on Betti numbers, Euler characteristic, and Minkowski functionals

P Pranav, R Van de Weygaert, G Vegter… - Monthly Notices of …, 2019 - academic.oup.com
This study presents a numerical analysis of the topology of a set of cosmologically
interesting 3D Gaussian random fields in terms of their Betti numbers β0, β1, and β2. We …

Non-Gaussian statistics of critical sets in 2D and 3D: Peaks, voids, saddles, genus, and skeleton

C Gay, C Pichon, D Pogosyan - … Review D—Particles, Fields, Gravitation, and …, 2012 - APS
The formalism to compute the geometrical and topological one-point statistics of mildly non-
Gaussian two-dimensional and three-dimensional (3D) cosmological fields is developed …

The horizon run N-body simulation: Baryon acoustic oscillations and topology of large-scale structure of the universe

J Kim, C Park, JR Gott, J Dubinski - The Astrophysical Journal, 2009 - iopscience.iop.org
In support of the new III survey, which will measure the baryon oscillation scale using the
luminous red galaxies (LRGs), we have run the largest N-body simulation to date using …

The Sloan great wall. Morphology and galaxy content

M Einasto, LJ Liivamägi, E Tempel, E Saar… - The Astrophysical …, 2011 - iopscience.iop.org
We present the results of a study of the morphology and galaxy content of the Sloan Great
Wall (SGW), the richest galaxy system in the nearby universe. We use the luminosity density …

[图书][B] Topological Complexity of Smooth Random Functions: École D'Été de Probabilités de Saint-Flour XXXIX-2009

R Adler, JE Taylor - 2011 - books.google.com
These notes, based on lectures delivered in Saint Flour, provide an easy introduction to the
authors' 2007 Springer monograph “Random Fields and Geometry.” While not as exhaustive …

Sloan Great Wall as a complex of superclusters with collapsing cores

M Einasto, H Lietzen, M Gramann, E Tempel… - Astronomy & …, 2016 - aanda.org
Context. The formation and evolution of the cosmic web is governed by the gravitational
attraction of dark matter and antigravity of dark energy (cosmological constant). In the cosmic …