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Cosmic quenching

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arxiv 2502.01724 v1 pith:SOOLAUTE submitted 2025-02-03 astro-ph.GA

Cosmic quenching

classification astro-ph.GA
keywords galaxiesprocessescosmicenvironmentdependepochsformationfraction
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The quenching of star formation activity represents a critical phase for a non-negligible fraction of the observed galaxy population at all cosmic epochs, marking a transition from an epoch of intense mass growth to an extended period of passive evolution. Over the past years, we have collected a detailed characterization of how the fraction of quenched galaxies evolves as a function of cosmic time (it grows at later cosmic epochs), and correlates with the physical properties of galaxies (more massive galaxies, that also tend to be bulge-dominated, are more likely to be quenched) and with their environment (denser environments host larger fractions of quiescent galaxies). Different physical processes can lead to a suppression of star formation. These include internal processes (processes that do not depend on the environment in which galaxies live, e.g. stellar and AGN feedback mechanisms) and processes that instead depend on the environment (e.g. mergers, gas stripping processes). In this chapter, we summarize the observational and theoretical status of the field, highlighting the most recent results and the questions that are yet to be answered. We also summarize our view on the expected developments in the next few years.

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Cited by 5 Pith papers

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  1. Extended [CII] gas emission in and around a massive quiescent galaxy at z=7.3

    astro-ph.GA 2026-06 unverdicted novelty 6.0

    Extended [CII] emission reveals a large cold gas halo around the z=7.27 quiescent galaxy RUBIES-UDS-QG-z7, with gas mass estimates indicating f_gas >20% and possible past AGN-driven outflow.

  2. Environmental vs. intrinsic quenching at cosmic noon: Predictions from cosmological hydrodynamical simulations for VLT-MOONRISE

    astro-ph.GA 2025-09 conditional novelty 6.0

    In TNG and EAGLE simulations, central and high-mass satellite galaxies are best predicted to quench by black hole mass while low-mass satellites by halo mass, yielding opposite predictions for detecting environmental ...

  3. The dual effect of group-scale environments on galaxy quenching during cluster infall: pre-processing and protection

    astro-ph.GA 2026-05 unverdicted novelty 5.0

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  4. Morphology, sizes, and scatter in a large sample of distant quiescent galaxies

    astro-ph.GA 2026-06 unverdicted novelty 4.0

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