The ALMaQUEST Survey X: what powers merger induced star formation?

Galaxy mergers are known to trigger both extended and central star formation. However, what remains be understood is whether this triggered formation facilitated by enhanced efficiencies, or an abundance of molecular gas fuel. This work presents spatially resolved measurements CO emission collected with the Atacama Large Millimetre Array (ALMA) for 20 merging galaxies (either pairs post-mergers) selected from Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey. Eleven additional ALMA MaNGA QUEnching STar (ALMaQUEST) survey, resulting in a set 31 various stages interaction covering broad range rates (SFR). We investigate galaxy-to-galaxy variations Kennicutt-Schmidt relation (rKS: $\Sigma_{H_2}$ vs. $\Sigma_{SFR}$), main sequence (rMGMS: $\Sigma_{\star}$ $\Sigma_{H_2}$), star-forming (rSFMS: $\Sigma_{SFR}$). quantify offsets these relations determine if rate, fraction, and/or efficiency (SFE) different regions individual galaxy. By comparing all three parameters we can discern fraction SFE powers $\Sigma_{SFR}$. find that merger-induced driven variety mechanisms, within galaxy between mergers, regardless stage.