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

Two of the dominant channels for galaxy mass assembly are cold flows (coldgas supplied via the filaments of the cosmic web) and mergers. How theseprocesses combine in a cosmological setting, at both low and high redshift, toproduce the whole zoo of galaxies we observe is largely unknown. Indeed thereis still much to understand about the detailed physics of each process inisolation. While these formation channels have been studied usinghydrodynamical simulations, here we study their impact on gas properties andstar formation (SF) with some of the first simulations that capture themultiphase, cloudy nature of the interstellar medium (ISM), by virtue of theirhigh spatial resolution (and corresponding low temperature threshold). In thisregime, we examine the competition between cold flows and asupernovae(SNe)-driven outflow in a very high-redshift galaxy (z {\approx} 9)and study the evolution of equal-mass galaxy mergers at low and high redshift,focusing on the induced SF. We find that SNe-driven outflows cannot reduce thecold accretion at z {\approx} 9 and that SF is actually enhanced due to theensuing metal enrichment. We demonstrate how several recent observationalresults on galaxy populations (e.g. enhanced HCN/CO ratios in ULIRGs, aseparate Kennicutt Schmidt (KS) sequence for starbursts and the population ofcompact early type galaxies (ETGs) at high redshift) can be explained withmechanisms captured in galaxy merger simulations, provided that the multiphasenature of the ISM is resolved.

The impact of ISM turbulence, clustered star formation and feedback on galaxy mass assembly through cold flows and mergers