English
Related papers

Related papers: The Spine of the Cosmic Web

200 papers

The main feature of the spatial large-scale galaxy distribution is its intricate network of galaxy filaments. This network is spanned by the galaxy locations that can be interpreted as a three-dimensional point distribution. The global…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 E. Tempel , R. S. Stoica , V. J. Martinez , L. J. Liivamägi , G. Castellan , E. Saar

We perform an analysis of the Cosmic Web as a complex network, which is built on a $\Lambda$CDM cosmological simulation. For each of nodes, which are in this case dark matter halos formed in the simulation, we compute 10 network metrics,…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-04 Maksym Tsizh , Bohdan Novosyadlyj , Yurij Holovatch , Noam I Libeskind

Filaments and clusters of the cosmic web have an impact on the properties of galaxies, switching off their star-formation, contributing to the build-up of their stellar mass, and influencing the acquisition of their angular momentum. In…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 Nicola Malavasi , Mathieu Langer , Nabila Aghanim , Daniela Galárraga-Espinosa , Céline Gouin

According to the modern cosmological paradigm galaxies and galaxy systems form from tiny density perturbations generated during the very early phase of the evolution of the Universe. Using numerical simulations we study the evolution of…

Cosmology and Nongalactic Astrophysics · Physics 2011-12-13 J. Einasto , G. Hütsi , E. Saar , I. Suhhonenko , L. J. Liivamägi , M. Einasto , V. Müller , A. A. Starobinsky E. Tago , E. Tempel

We introduce The Fabric of the Universe, an art and science collaboration focused on exploring the cosmic web of dark matter with unconventional techniques and materials. We discuss two of our projects in detail. First, we describe a…

Popular Physics · Physics 2017-04-26 Benedikt Diemer , Isaac Facio

The large-scale matter distribution represents a complex network of structure elements such as voids, clusters, filaments, and sheets. This network is spanned by a point distribution. The global properties of the point process can be…

Astrophysics · Physics 2009-10-28 Andrei G. Doroshkevich , Stefan Gottloeber , Soeren Madsen

Using a series of cosmological simulations that includes one dark-matter-only (DM-only) run, one gas cooling-star formation-supernovae feedback (CSF) run and one that additionally includes feedback from active galactic nuclei (AGNs), we…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-22 Weiguang Cui , Alexander Knebe , Gustavo Yepes , Xiaohu Yang , Stefano Borgani , Xi Kang , Chris Power , Lister Staveley-Smith

We present a general formalism for identifying the caustic structure of an evolving mass distribution in an arbitrary dimensional space. For the class of Hamiltonian fluids the identification corresponds to the classification of…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-23 Job Feldbrugge , Rien van de Weygaert , Johan Hidding , Joost Feldbrugge

According to the current standard model of Cosmology, matter in the Universe arranges itself along a network of filamentary structure. These filaments connect the main nodes of this so-called 'Cosmic Web', which are clusters of galaxies.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Matteo Maturi , Julian Merten

We present, for the first time, a Local Universe (LU) characterization using high precision constrained $N$-body simulations based on self-consistent phase-space reconstructions of the large-scale structure in the Two-Micron All-Sky Galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-29 Sebastian E. Nuza , Francisco-Shu Kitaura , Steffen Hess , Noam I. Libeskind , Volker Mueller

The cosmic web is a complex spatial pattern of walls, filaments, cluster nodes and underdense void regions. It emerged through gravitational amplification from the Gaussian primordial density field. Here we infer analytical expressions for…

Cosmology and Nongalactic Astrophysics · Physics 2014-12-17 Job Feldbrugge , Johan Hidding , Rien van de Weygaert

It is possible to visualize the Cosmic Web as an interconnected network of one-dimensional filaments, two-dimensional sheets and three-dimensional volume-filling structures which we refer to as clusters. We have used the Local Dimension D,…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-28 Prakash Sarkar , Biswajit Pandey , Somnath Bharadwaj

Shear wave elastography (SWE) enables the measurement of elastic properties of soft materials, including soft tissues, in a non-invasive manner and finds broad applications in a variety of disciplines. The state-of-the-art SWE methods…

Soft Condensed Matter · Physics 2022-10-04 Ziying Yin , Guo-Yang Li , Zhaoyi Zhang , Yang Zheng , Yanping Cao

We investigate the alignment of haloes with the filaments of the cosmic web using an unprecedently large sample of dark matter haloes taken from the P-Millennium $\Lambda$CDM cosmological N-body simulation. We use the state-of-the-art NEXUS…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-20 Punyakoti Ganeshaiah Veena , Marius Cautun , Rien van de Weygaert , Elmo Tempel , Bernard J. T. Jones , Steven Rieder , Carlos S. Frenk

Precise cosmic web classification of observed galaxies in massive spectroscopic surveys can be either highly uncertain or computationally expensive. As an alternative, we explore a fast Machine Learning-based approach to infer the…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-08 John F. Suárez-Pérez , Yeimy Camargo , Xiao-Dong Li , Jaime E. Forero-Romero

We describe an innovative statistical approach for the ab initio simultaneous analysis of the formation history and morphology of the large-scale structure of the inhomogeneous Universe. Our algorithm explores the joint posterior…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-29 Florent Leclercq , Benjamin Wandelt

We explore the information theory entropy of a graph as a scalar to quantify the cosmic web. We find entropy values in the range between 1.5 and 3.2 bits. We argue that this entropy can be used as a discrete analogue of scalars used to…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-20 María Valentina García-Alvarado , Jaime E. Forero-Romero , Xiao-Dong Li

An approach to cosmological modelling is presented that incorporates the inhomogeneous structure of the Cosmic Web, specifically focusing on the interplay between cosmic voids and density walls. We extend the standard homogeneous and…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-12 John Moffat

We present a novel method for computing the Minkowski Functionals from isodensity surfaces extracted directly from the Delaunay tessellation of a point distribution. This is an important step forward compared to the previous cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2010-06-23 Miguel A. Aragon-Calvo , Sergei F. Shandarin , Alexander Szalay

Galaxy clusters in the Universe occupy the important position of nodes of the cosmic web. They are connected among them by filaments, elongated structures composed of dark matter, galaxies, and gas. The connection of galaxy clusters to…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-05 Nicola Malavasi , Jenny G. Sorce , Klaus Dolag , Nabila Aghanim
‹ Prev 1 3 4 5 6 7 10 Next ›