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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…

The main goal of this work is to investigate the influence of environment at different scales on the properties of galaxies in systems with a low number of members. To this end we used a catalogue of small galaxy systems comprising compact…

Astrophysics of Galaxies · Physics 2020-03-06 Fernanda Duplancic , Federico Dávila-Kurbán , Georgina V. Coldwell , Sol Alonso , Daniela Galdeano

The stellar mass and metallicity are among the fundamental parameters of galaxies. An understanding of the interplay between those properties as well as their environmental dependence will give us a general picture of the physics and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 M. A. Lara-Lopez , A. M. Hopkins , A. Robotham , M. S. Owers , M. Colless , S. Brough , P. Norberg , O. Steele , E. N. Taylor , D. Thomas

The zCOSMOS-bright 10k spectroscopic sample reveals a strong environmental dependence of close kinematic galaxy pair fractions in the redshift range 0.2 < z < 1. The fraction of close pairs is three times higher in the top density quartile…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-20 P. Kampczyk , S. J. Lilly , the zCOSMOS Collaboration

The stellar surface density within the inner 1 kpc ($\Sigma_{1}$) has become a popular tool for understanding the growth of galaxies and its connection with the quenching of star formation. The emerging picture suggests that building a…

Using the Horizon-AGN simulation we find a mass dependent spin orientation trend for galaxies: the spin of low-mass, rotation-dominated, blue, star-forming galaxies are preferentially aligned with their closest filament, whereas high-mass,…

Astrophysics of Galaxies · Physics 2017-02-15 charlotte Welker , Yohan Dubois , Julien Devriendt , Christophe Pichon , Sebastien Peirani

Within the standard model of hierarchical galaxy formation in a {\Lambda}CDM Universe, the environment of galaxies is expected to play a key role in driving galaxy formation and evolution. In this paper we investigate whether and how the…

Astrophysics of Galaxies · Physics 2019-09-25 Jianhui Lian , Daniel Thomas , Cheng Li , Zheng Zheng , Claudia Maraston , Dmitry Bizyaev , Richard Lane , Renbin Yan

We have studied 116 bright galaxies from the Coma cluster brighter than $m_{r}=17$ mag. From a quantitative morphological analysis we find that the scales of the disks are smaller than those of field spiral galaxies. There is a correlation…

Astrophysics · Physics 2015-06-24 J. A. L. Aguerri , J. Iglesias-Paramo , J. M. Vichez , C. Muñoz-Tuñón

The stellar mass-size relation is a sensitive probe of how environment shapes galaxy structure. We analyse this relation in the local Universe for galaxies in compact groups (CGs), low-mass groups ($M_{\rm vir} \leq 10^{13}~M_{\odot}$), and…

We investigate the 3D spin alignment of galaxies with respect to the large-scale filaments using the MaNGA survey. The cosmic web is reconstructed from the Sloan Digital Sky Survey using Disperse and the 3D spins of MaNGA galaxies are…

We investigate the interplay between morphology, specific star formation rate (sSFR), and local environment using a sample of 7,408 galaxies from the SDSS-IV MaNGA survey. Our analysis spans stellar masses from dwarf to massive galaxies,…

Astrophysics of Galaxies · Physics 2026-05-20 Chandan Watts , Gothai L , Sudhanshu Barway

We explore how the group environment may affect the evolution of star-forming galaxies. We select 1197 Galaxy And Mass Assembly (GAMA) groups at $0.05\leq z \leq 0.2$ and analyze the projected phase space (PPS) diagram, i.e. the galaxy…

We study how the void environment affects the formation and evolution of galaxies in the universe by comparing the ratio of dark matter halo mass to stellar mass of galaxies in voids with galaxies in denser regions. Using spectroscopic…

Astrophysics of Galaxies · Physics 2020-06-09 Kelly A. Douglass , Jacob A. Smith , Regina Demina

We examine the kinematic morphology of early-type galaxies (ETGs) in eight galaxy clusters in the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey. The clusters cover a mass range of 14.2<log(M_200/M_odot)<15.2 and…

In this letter, we investigate the impact of environment on integrated and spatially-resolved stellar kinematics of a sample of massive, quiescent galaxies at intermediate redshift ($0.6<z<1.0$). For this analysis, we combine photometric…

From a carefully selected sample of $52\,089$ galaxies and $10\,429$ groups, we investigate the variation of the low-redshift galaxy stellar mass function (GSMF) in the equatorial Galaxy And Mass Assembly (GAMA) dataset as a function of…

Astrophysics of Galaxies · Physics 2025-03-28 A. Sbaffoni , J. Liske , S. P. Driver , A. S. G. Robotham , E. N. Taylor

The iMaNGA project uses a forward-modelling approach to compare the predictions of cosmological simulations with observations from SDSS-IV/MaNGA. We investigate the dependency of age and metallicity radial gradients on galaxy morphology,…

From the Main galaxy sample of the Sloan Digital Sky Survey Data Release 6 (SDSS DR6), we construct two volume-limited samples above and below the value of M, to explore the difference of the environmental dependence of galaxy properties…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 Xin-Fa Deng , Ji-Zhou He , Xiao-Qing Wen , Xiao-Xun Tang

It is a remarkable feature that various properties of galaxies vary according to their environments. However, only little has been known on the origin of this variety in galaxies. Using the Sloan Digital Sky Survey (SDSS) data, we…

Astrophysics · Physics 2007-05-23 Tomotsugu Goto
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