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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We investigate the impact of the number of filaments connected to the nodesof the cosmic web on the physical properties of their galaxies using the SloanDigital Sky Survey. We compare these measurements to the cosmologicalhydrodynamical simulations Horizon-(no)AGN and Simba. We find that more massivegalaxies are more connected, in qualitative agreement with theoreticalpredictions and measurements in dark matter only simulation. The star formationactivity and morphology of observed galaxies both display some dependence onthe connectivity of the cosmic web at fixed stellar mass: less star forming andless rotation supported galaxies also tend to have higher connectivity. Theseresults qualitatively hold both for observed and virtual galaxies, and can beunderstood given that the cosmic web is the main source of fuel for galaxygrowth. The simulations show the same trends at fixed halo mass, suggestingthat the geometry of filamentary infall impacts galaxy properties beyond thedepth of the local potential well. Based on simulations, it is also found thatAGN feedback is key in reversing the relationship between stellar mass andconnectivity at fixed halo mass. Technically, connectivity is a practicalobservational proxy for past and present accretion (minor mergers or diffuseinfall).

The impact of the connectivity of the cosmic web on the physical properties of galaxies at its nodes