English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Observations and simulations have demonstrated that star formation ingalaxies must be actively suppressed to prevent the formation of over-massivegalaxies. Galactic outflows driven by stellar feedback or supermassive blackhole accretion are often invoked to regulate the amount of cold molecular gasavailable for future star formation, but may not be the only relevant quenchingprocesses in all galaxies. We present the discovery of vast molecular tidalfeatures extending up to 64 kpc outside of a massive z=0.646 post-starburstgalaxy that recently concluded its primary star-forming episode. The tidaltails contain (1.2 +/- 0.1)x10^10 Msun of molecular gas, 47 +/- 5 % of thetotal cold gas reservoir of the system. Both the scale and magnitude of themolecular tidal features are unprecedented compared to all known nearby orhigh-redshift merging systems. We infer that the cold gas was stripped from thehost galaxies during the merger, which is most likely responsible fortriggering the initial burst phase and the subsequent suppression of starformation. While only a single example, this result shows that galaxy mergerscan regulate the cold gas contents in distant galaxies by directly removing alarge fraction of the molecular gas fuel, and plausibly suppress star formationdirectly, a qualitatively different physical mechanism than feedback-drivenoutflows.

Star Formation Suppresion by Tidal Removal of Cold Molecular Gas from an Intermediate-Redshift Massive Post-Starburst Galaxy