Speaker
Description
With the rise of integral field spectroscopy, the complexity of the data analysis has grown significantly. This is particularly true for studies of active galactic nuclei (AGN), where there is a complex interplay between large amounts of gas and dust across different scales. The James Webb Space Telescope (JWST) offers a new opportunity to study the properties of local AGN and (ultra)luminous infrared galaxies (U/LIRGs) with an unprecedented combination of high spatial and spectral resolution in the mid-infrared (mid-IR).
I will present the first results obtained using a new unsupervised hierarchical clustering technique to analyse JWST MIRI data obtained from the Galactic Activity, Torus and Outflow Survey (GATOS). Using MIRI's medium-resolution spectrometer (MRS) on board of the JWST, we aim to characterise the physical processes occurring in these galaxies, with the particular focus on the impact of AGN feedback through a detailed study of mid-IR emission lines.
This novel technique, applied to nearby active galaxies, demonstrates the ability to disentangle regions dominated by distinct physical processes, such as AGN photoionization, shocks, and star formation activity.
