Back to Volume
Paper: Large-Scale Mixing in Barred Galaxies
Volume: 147, Abundance Profiles: Diagnostic Tools for Galaxy History
Page: 295
Authors: Noguchi, Masafumi
Abstract: Numerical simulations including star formation and chemical enrichment have been carried out for bar formation in both dynamically unstable galactic disks and tidally perturbed disk galaxies. Spontaneous bars and tidally-triggered bars show the qualitatively same behavior in the change of chemical abundance gradient, defying the possibility of descriminating between the two types of bars by abundance study. Both models can explain the observed correlation between the spatial distribution of star forming regions in a barred galaxy and its abundance gradient slope as a manifestation of the chronological sequence of the infall of metal-poor interstellar gas.
Back to Volume