Results 71 to 80 of about 7,925 (170)

From the Densest Clusters to the Emptiest Voids: No Evidence for Environmental Effects on the Galaxy Size–Stellar Mass Relation at Low Redshift

The Astrophysical Journal
We present a comprehensive study of the galaxy size–stellar mass relation (SMR) at low redshift ( z ≤ 0.125), using a large spectroscopic sample from the Sloan Digital Sky Survey Data Release 13 (SDSS DR13).
Mohamed H. Abdullah, Nouran E. Abdelhamid, Rasha M. Samir, Gillian Wilson   +3 more
doaj   +1 more source

A Massive Quiescent Galaxy in a Group Environment at z = 4.53

The Astrophysical Journal
We report on the spectroscopic confirmation of a massive quiescent galaxy at z _spec = 4.53 in the COSMOS field. The object was first identified as a galaxy with suppressed star formation at z _phot ∼ 4.65 from the COSMOS2020 catalog.
Takumi Kakimoto, Masayuki Tanaka, Masato Onodera, Rhythm Shimakawa, Po-Feng Wu, Katriona M. L. Gould, Kei Ito, Shuowen Jin, Mariko Kubo, Tomoko L. Suzuki, Sune Toft, Francesco Valentino, Kiyoto Yabe   +12 more
doaj   +1 more source

The Environment Of Galaxies And Groups Of Galaxies [PDF]

In this thesis, we employ two numerical tools - semi-\ud analytical models and N-body plus hydrodynamical simulations of large scale structure and individual galaxies - to explore the underlying physics governing the formation and evolution of groups of galaxies, and the role of environment in generating polar structures around disk galaxies.\ud \ud ...
openaire  

All the massive galaxy overdensities during reionisation

Astronomy & Astrophysics
The high-redshift progenitors of present-day galaxy clusters are believed to substantially contribute to the global star formation rate density and drive the large-scale reionisation of the Universe.
Terp Chamilla, Heintz Kasper E., Matthee Jorryt, Naidu Rohan P., Oesch Pascal A., Witten Callum, Kashino Daichi, Pollock Clara L., Di Cesare Claudia, Torralba Alberto   +9 more
doaj   +1 more source

To High Redshift and Low Mass: Exploring the Emergence of Quenched Galaxies and Their Environments at 3 < z < 6 in the Ultra-deep JADES MIRI F770W Parallel

The Astrophysical Journal
We present the robust selection of high-redshift quiescent galaxies (QG) and poststarburst (PSB) galaxies using ultra-deep NIRCam and MIRI imaging from the JWST Advanced Deep Extragalactic Survey (JADES).
Stacey Alberts, Christina C. Williams, Jakob M. Helton, Katherine A. Suess, Zhiyuan Ji, Irene Shivaei, Jianwei Lyu, George Rieke, William M. Baker, Nina Bonaventura, Andrew J. Bunker, Stefano Carniani, Stephane Charlot, Emma Curtis-Lake, Francesco D’Eugenio, Daniel J. Eisenstein, Anna de Graaff, Kevin N. Hainline, Ryan Hausen, Benjamin D. Johnson, Roberto Maiolino, Eleonora Parlanti, Marcia J. Rieke, Brant E. Robertson, Yang Sun, Sandro Tacchella, Christopher N. A. Willmer, Chris J. Willott   +27 more
doaj   +1 more source

The invariance of group occupation across the cosmic web

Astronomy & Astrophysics
Context. Recent efforts to identify secondary variations in the halo occupation distribution (HOD) have primarily focused on simulations that examine the role of large-scale cosmic environments, such as superclusters, filaments, and under-dense regions ...
Izzo Dominguez Vicente, Rodriguez Facundo, Montero-Dorta Antonio D.   +2 more
doaj   +1 more source

MAGAZ3NE: Evidence for Galactic Conformity in z ≳ 3 Protoclusters

The Astrophysical Journal
We examine the quiescent fractions of massive galaxies in six z ≳ 3 spectroscopically confirmed protoclusters in the COSMOS field, one of which is newly confirmed and presented here. We report the spectroscopic confirmation of MAGAZ3NE J100143+023021 at $
Ian McConachie, Gillian Wilson, Ben Forrest, Z. Cemile Marsan, Adam Muzzin, M. C. Cooper, Marianna Annunziatella, Danilo Marchesini, Percy Gomez, Wenjun Chang, Stephanie M. Urbano Stawinski, Michael McDonald, Tracy Webb, Allison Noble, Brian C. Lemaux, Ekta A. Shah, Priti Staab, Lori M. Lubin, Roy R. Gal   +18 more
doaj   +1 more source

ALMA-JELLY. I. High Resolution CO(2–1) Observations of Ongoing Ram Pressure Stripping in NGC 4858 Reveal Asymmetrical Gas Tail Formation and Fallback

The Astrophysical Journal
We present new CO(2–1) observations (resolution ∼1″ = 460 pc) of the Coma cluster jellyfish galaxy NGC 4858 obtained from the ALMA-JELLY large program.
Harrison J. Souchereau, Jeffrey D. P. Kenney, Pavel Jáchym, Ming Sun, William J. Cramer, Masafumi Yagi, Alessandro Boselli, Elias Brinks, Francoise Combes, Luca Cortese, Boris Deshev, Matteo Fossati, Romana Grossová, Rongxin Luo, Jan Palouš, Tom C. Scott   +15 more
doaj   +1 more source

Impact of galaxy cluster environment on the stellar mass function of galaxies

Journal of Astrophysics and Astronomy
Galaxy clusters represent some of the most extreme environments in the Universe. They are ideal locations to study the impact of an extreme environment on the evolution of the Stellar Mass Function (SMF), which describes the statistical distribution of galaxies as a function of their stellar masses.
SANA BEGUM MURTUJA SHAIKH, PRIYANKA SINGH   +1 more
openaire   +2 more sources

Environmental Effects and Size–Mass Relations of Red Disk Galaxies at 0.1 < z < 0.5

The Astrophysical Journal
Red disk galaxies (RDGs), as a minority population in the process of galaxy evolution, have attracted considerable attention, due to the decoupling between color and morphological evolution.
Zhaobin Chen, Yizhou Gu, Hu Zou, Qirong Yuan   +3 more
doaj   +1 more source