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We investigate how cosmic web environment impacts the average properties of central galaxies in the Sloan Digital Sky Survey (SDSS). We analyse how the average specific star-formation rate, stellar age, metallicity and element abundance…

Astrophysics of Galaxies · Physics 2021-07-07 Nico Winkel , Anna Pasquali , Katarina Kraljic , Rory Smith , Anna R. Gallazzi , Thomas M. Jackson

We investigate the influence of large-scale cosmic web environments on galaxy quenching using a volume-limited, stellar mass-matched galaxy sample from SDSS DR18. Galaxies are classified as residing in sheets, filaments, or clusters based…

Astrophysics of Galaxies · Physics 2026-03-31 Anindita Nandi , Biswajit Pandey

We investigate how the star formation activity of galaxies depends on their position within the cosmic web using the SIMBA cosmological simulation from redshift $z=3$ to $z=0$. While previous studies found that galaxies closer to filaments…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-17 B. Jego , K. Kraljic , M. Béthermin , R. Davé

Field dwarf galaxies not actively forming stars are relatively rare in the local Universe, but are present in cosmological hydrodynamical simulations. We use the TNG50 simulation to investigate their origin and find that they all result…

Astrophysics of Galaxies · Physics 2025-01-24 José A. Benavides , Julio F. Navarro , Laura V. Sales , Isabel Pérez , Bahar Bidaran

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

We use a mass complete (log($M/M_{\odot}$) $\geqslant$ 9.6) sample of galaxies with accurate photometric redshifts in the COSMOS field to construct the density field and the cosmic web to $z$=1.2. The comic web extraction relies on the…

We investigate the influence of the cosmic web on galaxy properties in the IllustrisTNG simulations. To disentangle the effects of galaxy groups and cosmic filaments, we classify the cosmic web environment into four categories: group,…

Astrophysics of Galaxies · Physics 2025-06-24 Guangyao Yu , Weishan Zhu , Qi-Rui Yang , Jian-Feng Mo , Tian-Cheng Luan , Long-Long Feng

With the aim of bringing substantial insight to the fundamental question of how galaxies acquire their material for star-formation, we present the first comprehensive characterisation of the galaxy connectivity (i.e. the number of…

Astrophysics of Galaxies · Physics 2023-05-03 Daniela Galárraga-Espinosa , Enrico Garaldi , Guinevere Kauffmann

We present a novel method for identifying cosmic web filaments using the IllustrisTNG (TNG100) cosmological simulations and investigate the impact of filaments on galaxies. We compare the use of cosmic density field estimates from the…

The role of the cosmic web in shaping galaxy properties is investigated in the GAMA spectroscopic survey in the redshift range $0.03 \leq z \leq 0.25$. The stellar mass, $u - r$ dust corrected colour and specific star formation rate (sSFR)…

The evolution of galaxies is known to be connected to their position within the large-scale structure and their local environmental density. We investigate the relative importance of these using the underlying dark matter density field…

Astrophysics of Galaxies · Physics 2026-02-11 Catherine Gallagher , Tariq Yasin , Richard Stiskalek , Harry Desmond , Matt J. Jarvis

Cosmological simulations suggest that various galaxy properties depend on their location within the cosmic web. Yet direct observational evidence of the dependence of star formation activity on distance to filaments remains scarce and is…

We study the effects of local environment and stellar mass on galaxy properties using a mass complete sample of quiescent and star-forming systems in the COSMOS field at $z\lesssim$ 3. We show that at $z\lesssim$ 1, the median…

Astrophysics of Galaxies · Physics 2016-07-13 Behnam Darvish , Bahram Mobasher , David Sobral , Alessandro Rettura , Nick Scoville , Andreas Faisst , Peter Capak

We investigate the role that dense environments have on the quenching of star formation and the transformation of morphology for a sample of galaxies selected from the Sloan Digital Sky Survey. We make a distinction between galaxies falling…

Astrophysics of Galaxies · Physics 2026-02-24 M. Oxland , L. C. Parker , R. R. de Carvalho , V. M. Sampaio

Galaxies exhibit different clustering and quenching properties in clusters, filaments, and the field, but it is still uncertain whether such differences are imprints of the tidal environment on galaxy formation, or if they reflect the…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-26 Shadab Alam , Ying Zu , John A. Peacock , Rachel Mandelbaum

Using a novel approach, we study the quenching and bursting of galaxies as a function of stellar mass ($M_{*}$), local environment ($\Sigma$), and specific star-formation rate (sSFR) using a large spectroscopic sample of $\sim$ 123,000…

Astrophysics of Galaxies · Physics 2018-02-14 Behnam Darvish , Christopher Martin , Thiago S. Gonçalves , Bahram Mobasher , Nick Z. Scoville , David Sobral

Galaxy environment plays an important role in driving the transformation of galaxies from blue and star-forming to red and quenched. Recent works have focused on the role of cosmic web filaments in galaxy evolution and have suggested that…

Galaxy properties are known to be affected by their environment. This is well established for the extremes of the density scales, between the high-density cluster environment and the low-density field. It is however not fully understood how…

Astrophysics of Galaxies · Physics 2024-09-20 Callum J. O'Kane , Ulrike Kuchner , Meghan E. Gray , Alfonso Aragón-Salamanca

Dwarf galaxies are thought to quench primarily due to environmental processes most typically occurring in galaxy groups and clusters or around single, massive galaxies. However, at earlier epochs, ($5 < z < 2$), the collapse of large scale…

Astrophysics of Galaxies · Physics 2023-01-04 Imad Pasha , Nir Mandelker , Frank C. van den Bosch , Volker Springel , Freeke van de Voort
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