Oral Presentation

The diversity of noncircular rotation motions in the MUSE-PHANGS galaxies: from ten pc scales to kpc scales.

Author(s): Carlos Lopez-Coba (ASIAA)

Presenter: Carlos Lopez-coba (ASIAA)

In this work, we address the origin of noncircular rotation in 19 galaxies from the MUSE/VLT-PHANGS survey. It is often assumed that gas and stars follow circular rotation around the nucleus, while this is true at global scales, nonaxisymmetric sources like spiral arms, and stellar bars, induce deviation from circular rotation on the gas and stars. In addition, local processes related to the ISM like star formation, nuclear activity, shocks and diffuse gas contribute to noncircular rotation in the observed line of sight velocities. We carried out a systematic study of the noncircular rotation at an unprecedented spatial resolution. We find that by only considering kinematics we are able to characterize the ionization conditions of the ionized gas. These results highlight the importance of kinematics when trying to understand the local and global conditions of the ISM.