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Related papers: Cosmic Ballet III: halo spin evolution in the cosm…

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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

We investigate the spin evolution of dark matter haloes and their dependence on the number of connected filaments from the cosmic web at high redshift (spin-filament relation hereafter). To this purpose, we have simulated $5000$ haloes in…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-15 Roberto E. Gonzalez , Joaquin Prieto , Nelson Padilla , Raul Jimenez

Both simulations and observations have found that the spin of halo/galaxy is correlated with the large scale environment, and particularly the spin of halo flips in filament. A consistent picture of halo spin evolution in different…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-19 Peng Wang , Xi Kang

We investigate the evolution of dark matter halo spin alignments with respect to cosmic filaments, exploring how halo mass, proximity to filaments, and major mergers influence their orientation over time. We perform a suite of dark…

Astrophysics of Galaxies · Physics 2026-04-01 David Tobar , Rory Smith , Antonio Montero-Dorta , Katarina Kraljic , Pablo López

We investigate the alignment of galaxies and haloes relative to cosmic web filaments using the EAGLE hydrodynamical simulation. We identify filaments by applying the NEXUS+ method to the mass distribution and the Bisous formalism to the…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-12 Punyakoti Ganeshaiah Veena , Marius Cautun , Elmo Tempel , Rien van de Weygaert , Carlos S. Frenk

We use N-body simulations to investigate the evolution of the orientation and magnitude of dark matter halo angular momentum within the large scale structure since z=3. We look at the evolution of the alignment of halo spins with filaments…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-20 Holly E. Trowland , Geraint F. Lewis , Joss Bland-Hawthorn

We use a series of N-body simulations of the LCDM cosmology to investigate the redshift evolution since z=1 of the properties and alignment with the large-scale structure of haloes in clusters, filaments, sheets and voids. We find that: (i)…

Astrophysics · Physics 2009-11-13 Oliver Hahn , C. Marcella Carollo , Cristiano Porciani , Avishai Dekel

Clusters, filaments, sheets and voids are the building blocks of the cosmic web. In this study, we present and compare two distinct algorithms for finding cosmic filaments and sheets, a task which is far less well established than the…

Astrophysics of Galaxies · Physics 2009-11-13 Youcai Zhang , Xiaohu Yang , Andreas Faltenbacher , Volker Springel , Weipeng Lin , Huiyuan Wang

The continuous flow of gas and dark matter across scales in the cosmic web can generate correlated dynamical properties of haloes and filaments (and the magnetic fields they contain). With this work, we study the halo spin properties and…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-17 Serena Banfi , Franco Vazza , Claudio Gheller

Dark matter haloes in cosmological filaments and walls have their spin vector aligned (in average) with their host structure. While haloes in walls are aligned with the plane of the wall independently of their mass, haloes in filaments…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Miguel A. Aragon-Calvo

The MMF technique is used to segment the cosmic web as seen in a cosmological N-body simulation into wall-like and filament-like structures. We find that the spins and shapes of dark matter haloes are significantly correlated with each…

We study the alignment of dark matter haloes with the cosmic web characterized by the tidal and velocity shear fields. We focus on the alignment of their shape, angular momentum and peculiar velocities. We use a cosmological N-body…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Jaime E. Forero-Romero , Sergio Contreras , Nelson Padilla

The standard cosmological paradigm currently lacks a detailed account of physics in the dark sector, the dark matter and energy that dominate cosmic evolution. In this paper, we consider the distinguishing factors between three alternative…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-15 Absem W. Jibrail , Pascal J. Elahi , Geraint F. Lewis

Both simulation and observational data have shown that the spin and shape of dark matter halos are correlated with their nearby large-scale environment. As structure formation on different scales is strongly coupled, it is trick to…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-27 Hou-Zun Chen , Xi Kang , Peng Wang , Noam I. Libeskind , Yu Luo

The alignment between halo spins and the cosmic web is still poorly understood despite being a widely studied topic. Here, we study this alignment within the context of tidal torque theory (TTT) and deviations from it. To this end, we…

Astrophysics of Galaxies · Physics 2021-02-19 Pablo López , Marius Cautun , Dante Paz , Manuel Merchán , Rien van de Weygaert

The halo spin flip refers to the phenomenon that the spin axes of dark matter halos with masses above a certain threshold tend to be preferentially aligned perpendicular to the hosting large-scale filaments, while low-mass halos tend to…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-05 Jounghun Lee , Noam I Libeskind , Suho Ryu

We employ a semi-analytical methodology to estimate the dark matter halo spin of HI-rich galaxies in the Arecibo Legacy Fast Alfa Survey and investigate the relationship between halo spin and the proximity of galaxies to cosmic filaments.…

Astrophysics of Galaxies · Physics 2026-04-03 Shihong Liu , Yu Rong

This work investigates the alignment of galactic spins with the cosmic web across cosmic time using the cosmological hydrodynamical simulation Horizon-AGN. The cosmic web structure is extracted via the persistent skeleton as implemented in…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-26 S. Codis , A. Jindal , N. E. Chisari , D. Vibert , Y. Dubois , C. Pichon , J. Devriendt

The cosmic web is the largest scale manifestation of the anisotropic gravitational collapse of matter. It represents the transitional stage between linear and non-linear structures and contains easily accessible information about the early…

Cosmology and Nongalactic Astrophysics · Physics 2014-06-02 Marius Cautun , Rien van de Weygaert , Bernard J. T. Jones , Carlos S. Frenk

Using a series of high-resolution N-body simulations of the concordance cosmology we investigate how the formation histories, shapes and angular momenta of dark-matter haloes depend on environment. We first present a classification scheme…

Astrophysics · Physics 2008-11-26 Oliver Hahn , Cristiano Porciani , C. Marcella Carollo , Avishai Dekel
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