Results 121 to 130 of about 9,154 (212)

Dissecting the Mass Quenching in TNG50: Galaxy Size Determines the Quenching Mode

open access: yesThe Astrophysical Journal
Abstract The diminishing of star formation is accompanied by size differentiating, as quiescent galaxies are more compact than star-forming galaxies (SFGs) at fixed stellar mass. In order to understand how galaxy quenching is related to galaxy sizes, we performed a demographic study of 46 massive quiescent central
Haochen Jiang   +4 more
openaire   +2 more sources

The JWST EXCELS Survey: Insights into the Nature of Quenching at Cosmic Noon

open access: yesThe Astrophysical Journal
We study 24 massive quiescent galaxies with $\mathrm{log}{{M}}_{* }/{{M}}_{\odot }\gt 10$ at 1 
Maya Skarbinski   +21 more
doaj   +1 more source

Three Quenched, Faint Dwarf Galaxies in the Direction of NGC 300: New Probes of Reionization and Internal Feedback

open access: yesThe Astrophysical Journal Letters
We report the discovery of three faint and ultrafaint dwarf galaxies—Sculptor A, Sculptor B, and Sculptor C—in the direction of NGC 300 ( D = 2.0 Mpc), a Large Magellanic Cloud–mass galaxy.
David J. Sand   +20 more
doaj   +1 more source

RUBIES Spectroscopically Confirms the High Number Density of Quiescent Galaxies from 2 < z< 5

open access: yesThe Astrophysical Journal
We present the number density of massive ( ${\mathrm{log}}({M}_{* }/{M}_{\odot })\gt 10.3$ ) quiescent galaxies at 2 
Yunchong Zhang   +23 more
doaj   +1 more source

The Ancient Star Formation History of the Extremely Low-mass Galaxy Leo P: An Emerging Trend of a Post-reionization Pause in Star Formation

open access: yesThe Astrophysical Journal
Isolated, low-mass galaxies provide the opportunity to assess the impact of reionization on their star formation histories (SFHs) without the ambiguity of environmental processes associated with massive host galaxies.
Kristen B. W. McQuinn   +14 more
doaj   +1 more source

The Environmental Quenching Mechanisms of Field Dwarf Galaxies

open access: yesThe Astrophysical Journal
Field dwarf galaxies not actively forming stars are relatively rare in the local Universe, but are present in cosmological hydrodynamical simulations.
José A. Benavides   +4 more
doaj   +1 more source

A massive quiescent galaxy at redshift 4.658. [PDF]

open access: yesNature, 2023
Carnall AC   +12 more
europepmc   +1 more source

Excavating the Ruins: An Ancient z = 2.675 Galaxy Which Formed in the First 500 Myr

open access: yesThe Astrophysical Journal
We present the analysis of an ancient galaxy at z = 2.675, which we dub “Eridu.” Simultaneously modeling the JWST/NIRSpec G140M and G235M spectra from the SMILES program and 0.4–25 μ m Hubble Space Telescope, JWST/NIRCam, and JWST/MIRI photometry from ...
Ian McConachie   +16 more
doaj   +1 more source

Environmental history of filament galaxies

open access: yesAstronomy & Astrophysics
Galaxy properties, such as stellar mass and star formation rate, correlate with their position within the cosmic web. Although galaxy properties can be correlated with a specific environment at a certain cosmic epoch, they may have experienced different ...
Zakharova D.   +4 more
doaj   +1 more source

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