Metallicity gradient of barred galaxies with TYPHOON

ABSTRACT Bars play an important role in mixing material the inner regions of galaxies and stimulating radial migration. Previous observations have found evidence for impact a bar on metallicity gradients but effect is still inconclusive. We use TYPHOON/PrISM survey to investigate along beyond region across entire star-forming disc five nearby galaxies. Using emission line diagrams identify spaxels, we recover global ranging from −0.0162 −0.073 dex kpc−1 with that galactic bars act as agent affecting situ star formation well motions gas stars. observe cases ‘shallow-steep’ profile, flattening inside (NGC 5068 NGC 1566) also note instances where appears drive steeper gradient producing ‘steep-shallow’ profiles 1365 1744). For 2835, break occurs at distance ∼4 times radius, which more likely driven by accretion outskirt galaxy instead bar. The variation around traces fluctuations rate surface density 1365, 1566, 1744. A larger sample combined hydrodynamical simulations required further explore diversity, relative importance different ISM mechanisms gas-phase local