Results 111 to 120 of about 14,680 (203)

Galaxy Quenching and Assembly: A Review

open access: yes, 2019
A review of observational and theoretical constraints on galaxy assembly and quenching.
openaire   +2 more sources

Widespread Rapid Quenching at Cosmic Noon Revealed by JWST Deep Spectroscopy

open access: yesThe Astrophysical Journal
Massive quiescent galaxies in the young Universe are expected to be quenched rapidly, but it is unclear whether they all experience starbursts before quenching and what physical mechanism drives rapid quenching. We study 14 massive quiescent galaxies ( $\
Minjung Park   +18 more
doaj   +1 more source

Star formation quenching precedes morphological transformation in COSMOS-Web’s richest galaxy groups

open access: yesAstronomy & Astrophysics
We analyzed the 25 richest galaxy groups in COSMOS-Web across the redshift range z = 0.18–3.65, identified using the Adaptive Matched Identifier of Clustered Objects (AMICO) algorithm.
Ghaffari Z.   +28 more
doaj   +1 more source

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

open access: yesThe 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   +12 more
doaj   +1 more source

A Quenched and Relatively Isolated Dwarf Galaxy in the Local Volume

open access: yesThe Astrophysical Journal
An increasing number of discoveries of isolated and quenched dwarf galaxies are challenging the idea that the present-day local environment of low-mass systems is the main determinant of their quenching.
Tehreem N. Hai   +9 more
doaj   +1 more source

The SAGA Survey. V. Modeling Satellite Systems around Milky Way–Mass Galaxies with Updated UniverseMachine

open access: yesThe Astrophysical Journal
Environment plays a critical role in shaping the assembly of low-mass galaxies. Here, we use the U niverse M achine (UM) galaxy–halo connection framework and Data Release 3 of the Satellites Around Galactic Analogs (SAGA) Survey to place dwarf galaxy ...
Yunchong Wang   +13 more
doaj   +1 more source

Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence

open access: yesThe Open Journal of Astrophysics
Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starbursts (PSBs) in
Sara Ellison   +5 more
doaj   +1 more source

Astrophysical black holes: An explanation for the galaxy quenching

open access: yesJournal of High Energy Astrophysics
In light of increasing observational evidence supporting the existence of ultra-compact objects, we adopt the term astrophysical black hole to refer to any object having a huge mass confined within a sufficiently small region of spacetime. This terminology encompasses both the classical black hole solutions predicted by general relativity, as well as ...
Jay Verma Trivedi   +3 more
openaire   +2 more sources

Exploring Lenticular Galaxy Formation in Field Environments Using NewHorizon: Evidence for Counterrotating Gas Accretion as a Formation Channel

open access: yesThe Astrophysical Journal
The formation pathways of lenticular galaxies (S0s) in field environments remain a matter of debate. We utilize the cosmological hydrodynamic simulation, NewHorizon , to investigate the issue. We select two massive star formation quenched S0s as our main
Seongbong Han   +11 more
doaj   +1 more source

Searching within Galaxies for the Earliest Signs of Quenching With Spatially Resolved Star Formation Histories in UVCANDELS Galaxies at z < 0.3

open access: yesThe Astrophysical Journal
Understanding the complicated processes that regulate star formation and cause a galaxy to become quiescent is key to our comprehension of galaxy evolution.
Charlotte Olsen   +20 more
doaj   +1 more source

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