Star formation shut down by multiphase gas outflow in a galaxy at a redshift of 2.45.

ABSTRACT: Large-scale outflows driven by supermassive black holes are thought to have a fundamental role in suppressing star formation in massive galaxies. However, direct observational evidence for this hypothesis is still lacking, particularly in the young universe where star-formation quenching is remarkably rapid^1-3, thus requiring effective removal of gas⁴ as opposed to slow gas heating^5,6. Although outflows of ionized gas are frequently detected in massive distant galaxies⁷, the amount of ejected mass is too small to be able to suppress star formation^8,9. Gas ejection is expected to be more efficient in the neutral and molecular phases¹⁰, but at high redshift these have only been observed in starbursts and quasars^11,12

SUBMITTER: Belli S 

PROVIDER: S-EPMC11153157 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature