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We have used the Largest Cluster Statistics and the Average Filamentarity to quantify respectively the connectivity and the shapes of the patterns seen in the galaxy distribution in two volume limited subsamples extracted from the…

Astrophysics · Physics 2009-07-07 Biswajit Pandey , Somnath Bharadwaj

The nature versus nurture scenario in galaxy and group evolution is a long-standing problem not yet fully understood on cosmological scales. We study the properties of groups and their central galaxies in different large-scale environments…

Astrophysics of Galaxies · Physics 2017-01-11 Anup Poudel , Pekka Heinämäki , Elmo Tempel , Maret Einasto , Heidi Lietzen , Pasi Nurmi

We construct a filament catalogue using an extension of the halo based filament finder of Zhang et al.(2009), in a 250 Mpc/h side N-body simulation, and study the properties of filaments ending upon or surrounding galaxy clusters (within 10…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Yookyung Noh , J. D. Cohn

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 present a statistical study of the filamentary structures of the cosmic web in the large hydro-dynamical simulations Illustris-TNG, Illustris, and Magneticum at redshift z=0. We focus on the radial distribution of the galaxy density…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-30 Daniela Galárraga-Espinosa , Nabila Aghanim , Mathieu Langer , Céline Gouin , Nicola Malavasi

Filaments are crucial components of the cosmic web, representing the extensive and aligned distributions of galaxies and gas. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we report the detection of a filament in…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-26 Jin-Long Xu , Ming Zhu , Peng Jiang , Nai-Ping Yu , Chuan-Peng Zhang , Xiao-Lan Liu , Mei Ai , Yin-Jie Jing , Jie Wang

Context. The cosmic web, a complex network of galaxy groups and clusters connected by filaments, is a dynamical environment in which galaxies form and evolve. However, the impact of cosmic filaments on the properties of galaxies is…

Astrophysics of Galaxies · Physics 2020-07-22 Teet Kuutma , Anup Poudel , Maret Einasto , Pekka Heinämäki , Heidi Lietzen , Antti Tamm , Elmo Tempel

The large--scale structure (LSS) in the Universe comprises a complicated filamentary network of matter. We study this network using a high--resolution simulation of structure formation of a $\Lambda$ Cold Dark Matter cosmology. We…

Astrophysics · Physics 2009-11-10 Joerg M. Colberg , K. Simon Krughoff , Andrew J. Connolly

The interstellar medium has a highly filamentary and hierarchical structure, which may play a significant role in star formation. A systematical study on the large-scale filaments towards their physical parameters, distribution, structures…

Astrophysics of Galaxies · Physics 2022-01-06 Yifei Ge , Ke Wang

Simulated galaxy distributions are suitable for developing filament detection algorithms. However, samples of observed galaxies, being of limited size, cause difficulties that lead to a discontinuous distribution of filaments. We created a…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-26 Anatoliy Tugay , Mariusz Tarnopolski

The cosmic web is a highly complex geometrical pattern, with galaxy clusters at the intersection of filaments and filaments at the intersection of walls. Identifying and describing the filamentary network is not a trivial task due to the…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-31 E. Tempel , R. S. Stoica , R. Kipper , E. Saar

We investigate the impact of filament and void environments on galaxies, looking for residual effects beyond the known relations with environment density. We quantified the host environment of galaxies as the distance to the spine of the…

Astrophysics of Galaxies · Physics 2017-03-29 Teet Kuutma , Antti Tamm , Elmo Tempel

Matter in the Universe is arranged in a cosmic web, with a filament of matter typically connecting each neighbouring galaxy pair, separated by tens of millions of light-years. A quadrupolar pattern of the spin field around filaments is…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-01 Qianli Xia , Mark C. Neyrinck , Yan-Chuan Cai , Miguel A. Aragón-Calvo

From a volume limited sample of 45,542 galaxies and 6,000 groups with $z \leq 0.213$ we use an adapted minimal spanning tree algorithm to identify and classify large scale structures within the Galaxy and Mass Assembly (GAMA) survey. Using…

Throughout the Milky Way, molecular clouds typically appear filamentary, and mounting evidence indicates that this morphology plays an important role in star formation. What is not known is to what extent the dense filaments most closely…

Filaments are ubiquitous in the universe. Recent observations have revealed that stars and star clusters form preferentially along dense filaments. Understanding the formation and properties of filaments is therefore a crucial step in…

Solar and Stellar Astrophysics · Physics 2016-01-22 Christoph Federrath

Recent surveys of dust continuum emission at sub-mm wavelengths have shown that filamentary molecular clouds are ubiquitous along the Galactic plane. These structures are inhomogeneous, with over-densities that are sometimes associated with…

Astrophysics of Galaxies · Physics 2016-01-27 Yanett Contreras , Guido Garay , Jill M. Rathborne , Patricio Sanhueza

Using a population of large-scale filaments extracted from an AREPO simulation of a Milky Way-like galaxy, we seek to understand the extent to which observed large-scale filament properties (with lengths $\gtrsim 100$ pc) can be explained…

Astrophysics of Galaxies · Physics 2020-01-01 Catherine Zucker , Rowan Smith , Alyssa Goodman

Filaments are elongated structures that connect groups and clusters of galaxies and are visually the striking feature in cosmological maps. In the literature, typically filaments are defined only using galaxies, assuming that these are good…

Astrophysics of Galaxies · Physics 2023-07-12 Daria Zakharova , Benedetta Vulcani , Gabriella De Lucia , Lizhi Xie , Michaela Hirschmann , Fabio Fontanot

The discovery of the large-scale structure has transformed our view of galaxy formation and evolution. Filaments of the cosmic web provide key environments that channel the growth of structures. Guided by predictions from cosmological…

Astrophysics of Galaxies · Physics 2025-11-11 M. Mondelin , S. Codis , J-C. Cuillandre , C. Laigle , A. Boselli , K. Kraljic , C. Stone