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Related papers: The Large-scale Effect of Environment on Galactic …

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We examine the origins of the bimodality observed in the global properties of galaxies around a stellar mass of 3x10^10 M_sun by comparing the environmental dependencies of star-formation for the giant and dwarf galaxy populations. The…

Astrophysics · Physics 2009-11-11 C. P. Haines , F. La Barbera , A. Mercurio , P. Merluzzi , G. Busarello

We investigate the environmental dependence of star formation and the morphology of galaxies in the local universe based on a volume-limited sample (0.030<z<0.065 and M_r<M_r^*+2) constructed from the data of the Sloan Digital Sky Survey.…

We use a sample of close galaxy pairs selected from the Sloan Digital Sky Survey Data Release 4 (SDSS DR4) to investigate in what environments galaxy mergers occur and how the results of these mergers depend on differences in local galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Sara L. Ellison , David R. Patton , Luc Simard , Alan W. McConnachie , Ivan K. Baldry , J. Trevor Mendel

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

We investigate the relationship between environment and the galaxy main sequence (the relationship between stellar mass and star formation rate) and also the relationship between environment and radio luminosity (P$_{\rm 1.4GHz}$) to shed…

Astrophysics of Galaxies · Physics 2020-10-21 S. M. Randriamampandry , M. Vaccari , K. M. Hess

How the environment influences the most massive galaxies is still unclear. To explore the environmental effects on morphology and star formation in the most massive galaxies at high redshift, we select galaxies with stellar mass…

Astrophysics of Galaxies · Physics 2023-06-28 Jie Song , Guanwen Fang , Yizhou Gu , Zesen Lin , Xu Kong

Environmental effects on the evolution of galaxies have been one of the leading questions in galaxy studies for decades. In this work, we investigate the relationship between the star formation activity of galaxies and their environmental…

Astrophysics of Galaxies · Physics 2024-03-01 Laya Ghodsi , Allison Man , Darko Donevski , Romeel Davé , Seunghwan Lim , Christopher C. Lovell , Desika Narayanan

Observations indicate that central galaxies show a significant alignment of their main shape axes with other galaxies in their group, as well as with the large-scale structure of the universe. Simulations have corroborated this finding,…

We study the environmental effect of galaxy evolution as a function of the underlying 3D dark matter density for the first time at $z=2-2.5$, in which the underlying matter density is reconstructed from observed galaxies through dynamical…

Astrophysics of Galaxies · Physics 2024-07-23 Rieko Momose , Khee-Gan Lee , Benjamin Horowitz , Metin Ata , Jeyhan S. Kartaltepe

(Abridged) Cluster environment has a strong impact on the star formation rate and AGN activity in cluster galaxies. In this work, we investigate the behaviour of different galaxy populations in galaxy clusters and their vicinity by means of…

Astrophysics of Galaxies · Physics 2024-03-07 Gregor Rihtaršič , Veronica Biffi , Dunja Fabjan , Klaus Dolag

In the local Universe, galaxy properties show a strong dependence on environment. In cluster cores, early type galaxies dominate, whereas star-forming galaxies are more and more common in the outskirts. At higher redshifts and in somewhat…

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

It is by now well established that galaxy evolution is driven by intrinsic and environmental processes, both contributing to shape the observed properties of galaxies. A number of early studies, both observational and theoretical, have…

Astrophysics of Galaxies · Physics 2015-08-06 A. Pasquali

We investigate the relation between star formation rates and local galaxy environment for a stellar mass selected galaxy sample in the redshift range 1.5 < z < 3. We use near-infra-red imaging from an extremely deep Hubble Space Telescope…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 R. Gruetzbauch , C. J. Conselice , A. E. Bauer , A. F. L. Bluck , R. W. Chuter , F. Buitrago , A. Mortlock , T. Weinzirl , S. Jogee

Using a sample of galaxies selected from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7) and a catalog of bulge-disk decompositions, we study how the size distribution of galaxies depends on the intrinsic properties of galaxies, such…

Astrophysics of Galaxies · Physics 2019-02-25 Youcai Zhang , Xiaohu Yang

A generic prediction of hierarchical clustering models is that the mass function of dark haloes in dense regions in the Universe should be top-heavy. We provide a novel test of this prediction using a sample of galaxies drawn from the Sloan…

Astrophysics · Physics 2009-11-11 Ummi Abbas , Ravi K. Sheth

Using data from four deep fields (COSMOS, AEGIS, ECDFS, and CDFN), we study the correlation between the position of galaxies in the star formation rate (SFR) versus stellar mass plane and local environment at $z<1.1$. To accurately estimate…

We examine whether large-scale environment affects the mass assembly history of their central galaxies. To facilitate this, we constructed dark matter halo merger trees from a cosmological N-body simulation and calculated the formation and…

Astrophysics of Galaxies · Physics 2014-10-02 Intae Jung , Jaehyun Lee , Sukyoung K. Yi

We discuss two slightly counter-intuitive findings about the environmental dependence of clustering in the Sloan Digital Sky Survey. First, we find that the relation between clustering strength and density is not monotonic: galaxies in the…

Astrophysics · Physics 2008-11-26 Ummi Abbas , Ravi K. Sheth

Both theoretical predictions and observations of the very nearby Universe suggest that low-mass galaxies (log$_{10}$[M$_{*}$/M$_{\odot}$]<9.5) are likely to remain star-forming unless they are affected by their local environment. To test…