Kinematics modelling of molecular gas in NGC 3100

A kinematics modelling of molecular gas in the centre of NGC
3100, a FRI radio galaxy hosted by a S0 galaxy at redshift z = 0.0088. The
inner region of NGC 3100 has been observed with ALMA at Band 6 during
Cycle 3. The CO(2-1) 230-GHz line (rest-frequency) was clearly detected.
The analysis of the line through the integrated intensity map (moment 0)
and the integrated velocity map (moment 1) revealed a ring-like rotating
structure. A tilted-ring model was built through the software 3D-Barolo to
better understand the complex kinematics of the gas. The modelling allowed
us to explore purely rotational velocity fields as well as fields
including non-circular motions.