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We study galactic star-formation activity as a function of environment and stellar mass over 0.5<z<2.0 using the FourStar Galaxy Evolution (ZFOURGE) survey. We estimate the galaxy environment using a Bayesian-motivated measure of the…

Galaxy properties are known to correlate with their location within the cosmic web. However, the role of filaments remains poorly understood, particularly for low-mass galaxies, which are expected to be more sensitive to environmental…

Astrophysics of Galaxies · Physics 2026-05-25 Daria Zakharova , Gabriella De Lucia , Benedetta Vulcani , Lizhi Xie , Stefania Barsanti , Sean McGee

The gas supply from the cosmic web is the key to sustain star formation in galaxies. It remains to be explored how the cosmic large-scale structure (LSS) effects on galaxy evolution at given local environments. We examine galaxy specific…

We report evidence of environmental quenching among galaxies at redshift ~ 2, namely the probability that a galaxy quenches its star formation activity is enhanced in the regions of space in proximity of other quenched, more massive…

We re-examine the fraction of low-redshift Sloan Digital Sky Survey satellites and centrals in which star formation has been quenched, using the environment quenching efficiency formalism that separates out the dependence of stellar mass.…

Astrophysics of Galaxies · Physics 2015-02-17 Christian Knobel , Simon J. Lilly , Joanna Woo , Katarina Kovac

The large-scale environment of the cosmic web is believed to impact galaxy evolution, but there is still no consensus regarding the mechanisms. We use a semi-analytic model (SAM) galaxy catalog to study the star formation and dust content…

Using the Sloan Digital Sky Survey, we adopt the sSFR-$\Sigma_{1kpc}$ diagram as a diagnostic tool to understand quenching in different environments. sSFR is the specific star formation rate, and $\Sigma_{1kpc}$ is the stellar surface…

Astrophysics of Galaxies · Physics 2016-09-26 J. Woo , C. M. Carollo , S. M. Faber , A. Dekel , S. Tacchella

We present a detailed analysis of the influence of the environment and of the environmental history on quenching star formation in central and satellite galaxies in the local Universe. We take advantage of publicly available galaxy…

In order to examine where, how and why the quenching of star formation begins in the outskirts of galaxy clusters, we investigate the de-projected radial distribution of a large sample of quenched and star-forming galaxies (SFGs) out to…

Astrophysics of Galaxies · Physics 2024-06-05 K. de Vos , M. R. Merrifield , N. A. Hatch

Does the environment of a galaxy directly influence the quenching history of a galaxy? Here we investigate the detailed morphological structures and star formation histories of a sample of SDSS group galaxies with both classifications from…

Astrophysics of Galaxies · Physics 2017-06-28 R. J. Smethurst , C. J. Lintott , S. P. Bamford , R. E. Hart , S. J. Kruk , K. L. Masters , R. C. Nichol , B. D. Simmons

It is yet to be understood how large-scale environments influence star formation activity in galaxy clusters. One recently proposed mechanism is that galaxy clusters can remain star-forming when fed by infalling groups and star-forming…

Astrophysics of Galaxies · Physics 2024-12-03 Eunhee Ko , Myungshin Im , Seong-Kook Lee , Clotilde Laigle

Understanding the relationship between the cosmic web and the gas content of galaxies is a key step towards understanding galaxy evolution. However, the impact of the cosmic web on the growth of galaxies and dark matter halos is not yet…

Astrophysics of Galaxies · Physics 2022-03-21 Callum T. Donnan , Rita Tojeiro , Katarina Kraljic

The environments where galaxies reside crucially shape their star formation histories. We investigate a large sample of 1626 cluster galaxies located within 105 galaxy clusters spanning a large range in redshift ($0.26 < z < 1.13)$. The…

We study the structural and environmental dependence of the star formation on the plane of stellar mass versus central core density ($\Sigma_{\rm 1\ kpc}$) in the nearby universe. We study the central galaxies in the sparse environment and…

Astrophysics of Galaxies · Physics 2022-01-05 Bingxiao Xu , Yingjie Peng

The impact of cosmic web environments on galaxy properties plays a critical role in understanding galaxy formation. Using the state-of-the-art cosmological simulation IllustrisTNG, we investigate how satellite galaxy abundance differs…

We present a systematic study of the environmental impact on star formation activities of galaxies using a mass-complete sample of $\sim$170k galaxies at $z<4$ from the latest COSMOS2020 catalog. At $z<1$, we find that the mean…

Astrophysics of Galaxies · Physics 2023-12-01 Ke Shi , Nicola Malavasi , Jun Toshikawa , Xianzhong Zheng

We use the IllustrisTNG cosmological hydrodynamical simulation to study the evolution of star formation rate (SFR)-density relation over cosmic time. We construct several samples of galaxies at different redshifts from $z=2.0$ to $z=0.0$,…

Astrophysics of Galaxies · Physics 2019-08-14 Ho Seong Hwang , Jihye Shin , Hyunmi Song

Galaxies form and evolve within the diverse environments of the cosmic web. However, disentangling the effects of internal properties, local environments, and large-scale structures (LSS) on galaxy evolution involvessignificant…

Astrophysics of Galaxies · Physics 2025-04-04 Stefano Zarattini , J. Alfonso L. Aguerri

We follow the evolution of galaxy systems in numerical simulation. Our goal is to understand the role of density perturbations of various scales in the formation and evolution of the cosmic web. We perform numerical simulations with the…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-28 I. Suhhonenko , J. Einasto , L. J. Liivamägi , E. Saar , M. Einasto , G. Hütsi , V. Müller , A. A. Starobinsky , E. Tago , E. Tempel

Isolated dwarf galaxies are intrinsically faint and difficult to detect. The limited sample size makes it challenging to observationally constrain the physical mechanisms that quench their star formation. To disentangle the quenching…

Astrophysics of Galaxies · Physics 2026-04-21 Zuoyu Wu , Yougang Wang , Shihong Liao