| |
 |
| Paper: |
Quantifying the Mixing due to Bars |
| Volume: |
480, Structure and Dynamics of Disk Galaxies |
| Page: |
170 |
| Authors: |
Sánchez-Blázquez, P.; Califa collaboration |
| Abstract: |
Numerical simulations have shown that strong gravitational torques by non-axisymmetric components — in particular bars — induce evolutionary processes such as redistribution of mass and angular momentum in the galactic disks and a consequent change of chemical abundance profiles. However, despite agreement between an increased number of theoretical works about the importance of stellar radial migrations for shaping disk galaxies — it is found that > 50% of stars on mostly circular orbits in the solar neighborhood have come from elsewhere — there is still a lack of observational evidence probing or quantifying the importance of this process. We aim at doing this by comparing these gradients in galaxies with and without bars. We present here a comparative study of the stellar metallicity gradient in a sample of disk galaxies from the Calar Alto Legacy Integral Field Area Survey (CALIFA). However, we do not find any difference between the metallicity gradient of barred and unbarred galaxies. We discuss several possibilities that can explain this result. |
|
|
|
|
|
