The chemical footprint of AGN feedback in the outflowing circumnuclear disk of NGC 1068

In the nearby (D=14 Mpc) AGN-starburst composite galaxy NGC 1068, it has been found that molecular gas in Circum-nuclear Disk (CND) is outflowing, which a manifestation of ongoing AGN feedback. The outflowing large spread velocities, likely drive different shock chemistry signatures at locations CND. We perform multi-line study using two tracers, SiO and HNCO, with aim to determine properties traced by these species, explore possibility reconstructing history Five transitions three HNCO were imaged high resolution $0''.5-0''.8$ Atacama Large Millimeter/submillimeter Array (ALMA). performed both LTE non-LTE radiative transfer analysis coupled Bayesian inference process order characterize properties, such as density temperature. clear evidence chemical differentiation between SiO/HNCO ratio ranging from greater than one on east CND lower west side. confirms densities - possibly temperatures HNCO. find traces affected fast shocks while either just slow or not shocked all. A distinct revealed our observations further results previous modelings.