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

Bars are common in low-redshift disk galaxies, and hence quantifying theirinfluence on their host is of importance to the field of galaxy evolution. Wedetermine the stellar populations and star formation histories of 245 barredgalaxies from the MaNGA galaxy survey, and compare them to a mass- andmorphology-matched comparison sample of unbarred galaxies. At fixed stellarmass and morphology, barred galaxies are optically redder than their unbarredcounterparts. From stellar population analysis using the full spectral fittingcode Starlight, we attribute this difference to both older and more metal-richstellar populations. Dust attenuation however, is lower in the barred sample.The star formation histories of barred galaxies peak earlier than theirnon-barred counterparts, and the galaxies build up their mass at earlier times.We can detect no significant differences in the local environment of barred andun-barred galaxies in this sample, but find that the HI gas mass fraction issignificantly lower in high-mass ($\rm{M}_{\star} > 10^{10}~\rm{M}_{\odot}$)barred galaxies than their non-barred counterparts. We speculate on themechanisms that have allowed barred galaxies to be older, more metal-rich andmore gas-poor today, including the efficient redistribution of galacticfountain byproducts, and a runaway bar formation scenario in gas-poor disks.While it is not possible to fully determine the effect of the bar on galaxyquenching, we conclude that the presence of a bar and the early cessation ofstar formation within a galaxy are intimately linked.

SDSS-IV MaNGA: The link between bars and the early cessation of star formation in spiral galaxies