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Related papers: The era of precision cosmology with voids

200 papers

Cosmic voids are becoming key players in testing the physics of our Universe. Here we concentrate on the abundances and the dynamics of voids as these are among the best candidates to provide information on cosmological parameters. Cai,…

Cosmology and Nongalactic Astrophysics · Physics 2014-10-31 Nelson Padilla , Dante Paz , Marcelo Lares , Laura Ceccarelli , Diego Garcia Lambas , Yan-Chuan Cai , Baojiu Li

We investigate the structural, photometric, and dynamical evolution of cosmic voids and their galaxy populations from $z=2.09$ to the present, focusing on void size as a key evolutionary parameter. Using void catalogs from four Millennium…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-28 Saeed Tavasoli

Cosmic voids are an important probe of large-scale structure that can constrain cosmological parameters and test cosmological models. We present a new paradigm for void studies: void detection in weak lensing convergence maps. This approach…

Cosmology and Nongalactic Astrophysics · Physics 2018-08-08 Christopher T. Davies , Marius Cautun , Baojiu Li

Over the past decades, advancements in observational cosmology have introduced us in an era of precision cosmology, dramatically enhancing our understanding of the Universe's history as well as bringing new tensions to light. Observations…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-24 Matteo Forconi

Studies of galaxy clusters have proved crucial in helping to establish the standard model of cosmology, with a universe dominated by dark matter and dark energy. A theoretical basis that describes clusters as massive, multi-component,…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-26 Steven W. Allen , August E. Evrard , Adam B. Mantz

The large under-dense regions in the cosmological matter density field, known as cosmic voids, are powerful probes of cosmology but their potential is currently under-exploited. Observationally, voids are identified within the large scale…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-14 Andrés N. Salcedo , Alice Pisani , Nico Hamaus

The massive exploitation of cosmic voids for precision cosmology in the upcoming dark energy experiments, requires a robust understanding of their internal structure, particularly of their density profile. We show that the void density…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 E. Ricciardelli , V. Quilis , J. Varela

Cosmic voids are underdense regions filling up most of the volume in the Universe. They are expected to emerge in regions comprising negative initial density fluctuations, and subsequently expand as the matter around them collapses and…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-07 David Vallés-Pérez , Vicent Quilis , Susana Planelles

We review and discuss aspects of Cosmic Voids that form the background for our Void Galaxy Survey (see accompanying paper by Stanonik et al.). Following a sketch of the general characteristics of void formation and evolution, we describe…

The sizes and shapes of voids in a galaxy survey depend not only on the physics of structure formation, but also on the sampling density of the survey and on the algorithm used to define voids. Using an N-body simulation with a CDM power…

Astrophysics · Physics 2009-10-31 Jason D. Schmidt , Barbara S. Ryden , Adrian L. Melott

Galaxy bias, the unknown relationship between the clustering of galaxies and the underlying dark matter density field is a major hurdle for cosmological inference from large-scale structure. While traditional analyses focus on the absolute…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-03 Nico Hamaus , Benjamin D. Wandelt , P. M. Sutter , Guilhem Lavaux , Michael S. Warren

We present a class of general prolate and oblate spheroidal spacetimes for the description of cosmic structures in the Universe. They are exact geometries which represent, in an appropriated way, the imbedding of spheroidal matter-energy…

General Relativity and Quantum Cosmology · Physics 2017-01-27 Ezequiel F. Boero , Osvaldo M. Moreschi

We apply the adhesion approximation to study the formation and evolution of voids in the Universe. Our simulations -- carried out using 128$^3$ particles in a cubical box with side 128 Mpc -- indicate that the void spectrum evolves with…

Astrophysics · Physics 2009-10-22 Varun Sahni , B. S. Sathyaprakash , Sergei F. Shandarin

Cosmic voids in the large-scale structure of the Universe affect the peculiar motions of objects in their vicinity. Although these motions are difficult to observe directly, the clustering pattern of their surrounding tracers in redshift…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-01 Nico Hamaus , P. M. Sutter , Guilhem Lavaux , Benjamin D. Wandelt

Voids are the most prominent feature of the LSS of the universe. Still, they have been generally ignored in quantitative analysis of it, essentially due to the lack of an objective tool to identify and quantify the voids. To overcome this,…

Astrophysics · Physics 2008-11-26 Hagai El-Ad , Tsvi Piran

Cosmic voids have emerged as powerful probes for cosmology, providing complementary information on the large-scale structure of the universe. We present the first application of a hydrodynamical framework to model the evolution of cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-23 Tommaso Moretti , Giovanni Verza , Noemi Frusciante , Francesco Pace

Peculiar velocities are the motions of galaxies due to the gravitational influence of large-scale structure, and thus are an important cosmological probe of the underlying matter density field. In recent years the number of surveys designed…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 Ryan J. Turner

Cosmic voids are a promising environment to characterize neutrino-induced effects on the large-scale distribution of matter in the universe. We perform a comprehensive numerical study of the statistical properties of voids, identified both…

Cosmology and Nongalactic Astrophysics · Physics 2015-11-18 Elena Massara , Francisco Villaescusa-Navarro , Matteo Viel , P. M. Sutter

Cosmic voids are underdense regions within the large-scale structure of the Universe, spanning a wide range of physical scales - from a few megaparsecs (Mpc) to the largest observable structures. Their distinctive properties make them…