Results 21 to 30 of about 624,561 (255)
Catching galaxies in the act of quenching star formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Detecting galaxies when their star-formation is being quenched is crucial to understand the mechanisms driving their evolution. We identify for the first time a sample of quenching galaxies selected just after the interruption of their star formation by exploiting the [O III]5007/Halpha ratio and searching for galaxies with undetected [O III].
Annalisa Citro +8 more
arxiv +5 more sources
Both starvation and outflows drive galaxy quenching [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Star-forming galaxies can in principle be transformed into passive systems by a multitude of processes that quench star formation, such as the halting of gas accretion (starvation) or the rapid removal of gas in AGN-driven outflows. However, it remains
J. Trussler +6 more
semanticscholar +7 more sources
Galaxy Zoo: The interplay of quenching mechanisms in the group environment [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 Does the environment of a galaxy directly influence the quenching history of a galaxy? Here we investigate the detailed morphological structures and star formation histories of a sample of SDSS group galaxies with both classifications from Galaxy Zoo 2 and NUV detections in GALEX.
Ross E. Hart +8 more
arxiv +9 more sources
AGN quenching in simulated dwarf galaxies [PDF]
arXiv, 2022 We examine the quenching characteristics of $328$ isolated dwarf galaxies $\left(10^{8} < M_{\rm star}/M_\odot < 10^{10} \right)$ within the \Rom{} cosmological hydrodynamic simulation. Using mock observation methods, we identify isolated dwarf galaxies with quenched star formation and make direct comparisons to the quenched fraction in the NASA Sloan ...
Sharma, Ray S. +4 more
arxiv +3 more sources
How is Star Formation Quenched in Massive Galaxies? [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 The bimodality in observed present-day galaxy colours has long been a challenge for hierarchical galaxy formation models, as it requires some physical process to quench (and keep quenched) star formation in massive galaxies. Here we examine phenomenological models of quenching by post-processing the star formation histories of galaxies from ...
Jared M. Gabor +5 more
arxiv +5 more sources
Merger Shocks Enhance Quenching in Local Galaxy Clusters [PDF]
The Astrophysical JournalWe report evidence for enhanced quenching in low-redshift galaxy clusters hosting radio relics. This effect is strongest for low-mass galaxies and is consistent with a rapid quenching of star formation.
Ian D. Roberts
doaj +2 more sources
The First Quenched Galaxies: When and How?
The Astrophysical Journal LettersMany quiescent galaxies discovered in the early Universe by JWST raise fundamental questions on when and how these galaxies became and stayed quenched. Making use of the latest version of the semianalytic model GAEA that provides good agreement with the ...
Lizhi Xie +13 more
doaj +3 more sources
The impact of quenching on galaxy profiles in the simba simulation [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 We study specific star formation rate (sSFR) and gas profiles of star forming and green valley galaxies in the Simba cosmological hydrodynamic simulation. Star-forming galaxy half-light radii ($R_{\rm half}$) at $z=0$ and their evolution ($\propto(1+z)^{-
S. Appleby +4 more
semanticscholar +7 more sources
Star formation quenching in massive galaxies [PDF]
Nature Astronomy, 2018 Understanding how and why star formation turns off in massive galaxies is a major challenge for studies of galaxy evolution. Many theoretical explanations have been proposed, but a definitive consensus is yet to be reached.
Allison W. S. Man, Sirio Belli
openalex +5 more sources
A dichotomy in satellite quenching around L* galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We examine the star formation properties of bright (~0.1 L*) satellites around isolated ~L* hosts in the local Universe using spectroscopically confirmed systems in the Sloan Digital Sky Survey DR7. Our selection method is carefully designed with the aid of N-body simulations to avoid groups and clusters.
John I. Phillips +5 more
openalex +7 more sources