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Context. Gravitational collapse theory and numerical simulations suggest that the velocity field within large-scale galaxy filaments is dominated by motions along the filaments. Aims. Our aim is to check whether observational data reveal…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-25 Elmo Tempel , Antti Tamm

Galaxies are not distributed randomly in the cosmic web but are instead arranged in filaments and sheets surrounding cosmic voids. Observationally there is still no convincing evidence of a link between the properties of galaxies and their…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 E. Tempel , R. S. Stoica , E. Saar

As the environment harbouring the majority of galaxies, filaments are thought to play a key role in the co-evolution of galaxies and the cosmic web. In this first part of a series to understand the link between galaxies and filaments…

Astrophysics of Galaxies · Physics 2025-10-15 Yannick M. Bahe , Pascale Jablonka

Aims. With the aim of performing an analysis of the orientations of galaxy pair systems with respect to the underlying large-scale structure, we study the alignment between the axis connecting the pair galaxies and the host cosmic filament…

Astrophysics of Galaxies · Physics 2018-10-31 Valeria Mesa , Fernanda Duplancic , Sol Alonso , M. Rosa Muñoz Jofré , Georgina Coldwell , Diego G. Lambas

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

Galaxies evolve within the intricate geometry of the cosmic web, yet the distinct roles of its primary components - nodes and filaments remain incompletely understood. Using the EAGLE cosmological hydrodynamical simulation, we investigate…

Astrophysics of Galaxies · Physics 2026-02-25 Suman Sarkar , Biswajit Pandey , Apashanka Das

We search for and find fossil evidence that the distribution of the spin axes of galaxies in cosmic web filaments relative to their host filaments are not randomly distributed. This would indicate that the action of large scale tidal…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Bernard J. T. Jones , Rien van de Weygaert , Miguel A. Aragon-Calvo

Observational studies have reported that cosmic filaments on the megaparsec scale exhibit rotational motion. Subsequent simulation studies have shown qualitative agreement with these findings, but quantitative discrepancies remain due to…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-07 Peng Wang , Xiao-Xiao Tang , Hao-Da Wang , Noam I. Libeskind , Elmo Tempel , Wei Wang , Youcai Zhang , Ming-Jie Sheng , Hao-Ran Yu , Haojie Xu

We present the first detection of mass dependent galactic spin alignments with local cosmic filaments with over 2 sigma confidence using IFS kinematics. The 3D network of cosmic filaments is reconstructed on Mpc scales across GAMA fields…

We study the colour and star formation rates of paired galaxies in filaments and sheets using the EAGLE simulations. We find that the major pairs with pair separation $<50$ kpc are bluer and more star forming in filamentary environments…

Astrophysics of Galaxies · Physics 2023-09-07 Apashanka Das , Biswajit Pandey , Suman Sarkar

The orientations of the red galaxies in a filament are aligned with the orientation of the filament. We thus develop a location-alignment-method (LAM) of detecting filaments around clusters of galaxies, which uses both the alignments of red…

Astrophysics of Galaxies · Physics 2015-10-29 Yu Rong , Yuan Liu , Shuang-Nan Zhang

We investigate the alignment between the spin vectors of galaxy groups and the axes of their nearest cosmic filaments using the TNG300-1 cosmological hydrodynamical simulation. By systematically analyzing a large sample of groups, we find a…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-30 Wei Wang , Peng Wang , Yu Rong , Hao-da Wang , Xiao-xiao Tang

The theory of galaxy formation posits a clear correlation between the spin of galaxies and the orientation of the elements of the large-scale structure of the Universe, particularly cosmic filaments. A substantial number of observational…

Astrophysics of Galaxies · Physics 2025-07-16 A. V. Antipova , D. I. Makarov , N. Libeskind , E. Tempel

Galaxies properties are known to be affected by their environment. One important question is how their angular momentum reflects the surrounding cosmic web. We use the SDSS to investigate the spin axes of spiral and elliptical galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Elmo Tempel , Noam I. Libeskind

We use data from the Evolution and Assembly of GaLaxies in their Environment (EAGLE) cosmological simulation to study properties of galaxies in the cosmic web. Galaxies become more redder and form stars at a lower rate relative to their…

Astrophysics of Galaxies · Physics 2020-07-29 Ankit Singh , Smriti Mahajan , J. S. Bagla

In this paper, we study the filamentary structures and the galaxy alignment along filaments at redshift $z=0.06$ in the MassiveBlack-II simulation, a state-of-the-art, high-resolution hydrodynamical cosmological simulation which includes…

In the cosmic web, filaments play a crucial role in connecting walls to clusters and also act as an important stage for galaxy formation and evolution. Recent observational studies claim that filaments have spin. In this study, we examined…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-07 Xiao-Xiao Tang , Peng Wang , Wei Wang , Ming-Jie Sheng , Hao-Ran Yu , Haojie Xu

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

We present a new algorithm to detect inter-cluster galaxy filaments based upon the assumption that the orientations of constituent galaxies along such filaments are non-isotropic. We apply the algorithm to the 2dF Galaxy Redshift Survey…

Astrophysics · Physics 2009-11-10 Kevin A. Pimbblet

Using a sample of galaxy groups selected from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), we examine the alignment between the orientation of galaxies and their surrounding large scale structure in the context of the cosmic web.…

Cosmology and Nongalactic Astrophysics · Physics 2013-12-05 Youcai Zhang , Xiaohu Yang , Huiyuan Wang , Lei Wang , H. J. Mo , Frank C. van den Bosch
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