Results 61 to 70 of about 7,925 (170)

Environmental Sculpting of Galaxy Structure at Fixed Stellar Mass: A Multiscale Analysis across Cosmic Time Using 3 Million HSC Galaxies

The Astrophysical Journal
The extent to which galaxy structure is shaped by environment beyond the local Universe, once stellar mass is controlled, remains an open question in galaxy evolution. We address this challenge using an unprecedentedly large sample of ∼3 million galaxies
Caitlin Igel, Aritra Ghosh, Andrew J. Connolly, Brant Robertson, C. Megan Urry, Louise O. V. Edwards, Rhythm Shimakawa   +6 more
doaj   +1 more source

Corvus A: A Low-mass, Isolated Galaxy at 3.5 Mpc

The Astrophysical Journal Letters
We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy Imaging Survey during the initial phase of our ongoing SEmi-Automated Machine LEarning Search for
Michael G. Jones, David J. Sand, Burçin Mutlu-Pakdil, Catherine E. Fielder, Denija Crnojević, Paul Bennet, Kristine Spekkens, Richard Donnerstein, Amandine Doliva-Dolinsky, Ananthan Karunakaran, Jay Strader, Dennis Zaritsky   +11 more
doaj   +1 more source

Galaxy Evolution and Environment

, 2007
The properties of galaxies are strongly correlated with their environment, with red galaxies dominating galaxy clusters and blue galaxies dominating the general field. However, not all field galaxies are young: studies of the colors, line strengths, and M/L ratios of massive early-type galaxies at ...
van Dokkum, Pieter, Quadri, Ryan
openaire   +2 more sources

The Photometric Analysis of the Environment Around Two Dusty Star-forming Galaxies at z ∼ 2

The Astrophysical Journal
Studying the environments of dusty star-forming galaxies (DSFGs) provides insight into whether these luminous systems are reliable signposts of large-scale overdensities.
Joe Bhangal, Allison W. S. Man, Tom J. L. C. Bakx, Darko Donevski, Pierre Cox, Helmut Dannerbauer, Stephen Serjeant, Masato Hagimoto, Pluto Jiang, Wenxiao Liu   +9 more
doaj   +1 more source

Intrinsic and Environmental Effects on the Distribution of Star Formation in TNG100 Galaxies

The Astrophysical Journal
We present radial profiles of luminosity-weighted age (age _L ) and ΔΣ _SFR for various populations of high- and low-mass central and satellite galaxies in the TNG100 cosmological simulation.
Bryanne McDonough, Olivia Curtis, Tereasa G. Brainerd   +2 more
doaj   +1 more source

The Impact of Void-finding Algorithms on Galaxy Classification

The Astrophysical Journal
We explore how the definition of a void influences the conclusions drawn about the impact of the void environment on galactic properties using two void-finding algorithms in the Void Analysis Software Toolkit: Voronoi Voids ( V ^2 ), a Python ...
Fatima Zaidouni, Dahlia Veyrat, Kelly A. Douglass, Segev BenZvi   +3 more
doaj   +1 more source

Effects of Environment on the Size Evolution of Quiescent Galaxies: Comparing Galaxies in Clusters and in the Field at Two Rest-frame Wavelengths

The Astrophysical Journal
We investigate the impact of environment on quiescent galaxy (QG) size evolution using the CLAUDS+HSC imaging covering 18.6 deg ^2 in five broad filters ( Ugriz ) and the effective radius of a single-Sérsic fit as a proxy for galaxy size.
Angelo George, Ivana Damjanov, Marcin Sawicki, Devin J. Williams, Lingjian Chen, Guillaume Desprez, Marianna Annunziatella, Stéphane Arnouts, Stephen Gwyn, Danilo Marchesini, Thibaud Moutard, Anna Sajina   +11 more
doaj   +1 more source

A Strong Stellar Age–Metallicity Gradient Relation in Nearby Dwarf Galaxies Driven by Stellar Migration and Environmental Quenching

The Astrophysical Journal Letters
Stellar metallicity gradients (∇[ Z / H ]) provide a fossil record of the assembly history of galaxies. We present an analysis of ∇[ Z / H ] for 90 nearby low-mass galaxies using Very Large Array (VLT)/MUSE integral field unit (IFU) spectroscopy ...
Tie Li, Hong-Xin Zhang, Wenhe Lyu, Weibin Sun, Bojun Tao, Weiyu Ding, Xu Kong, Guangwen Chen, Jianhui, Lian, Yong Shi, Fuyan Bian, Xin Li, Xiaoling Yu, Zhiyuan Zheng, Yanmei Chen, Qiusheng Gu, Junfeng Wang, Shude Mao, Kai Zhu   +18 more
doaj   +1 more source

Environment of Quiescent Low-mass Galaxies Hosting AGNs in MaNGA

The Astrophysical Journal
The discovery of active galactic nuclei (AGNs) in low-mass ( M _* ≤ 5 × 10 ^9 M _⊙ ) galaxies has pushed forward the idea that AGN feedback may play a role in quenching star formation in the low-mass regime.
Catherine A. Witherspoon, Eric M. Wilcots   +1 more
doaj   +1 more source

The effect of the galaxy environment on the size and structure of galaxies [PDF]

, 2013
In this thesis, we explore the effect of the galaxy environment on the physical size and structure of the stellar distribution for relatively local galaxies (z < 0.3) using Hubble Space Telescope/Advanced Camera for Surveys imaging and data from the Space Telescope A901/2 galaxy evolution survey (STAGES).
openaire   +2 more sources