Observational signatures of jet feedback on galaxy scales

Jet kinetic feedback on galaxy scales is a key mechanism regulating galaxy evolution. Jet-environment interactions are complex. The jets drive shocks, turbulence, and outflows in the multiphase interstellar medium (ISM). Conversely, mass-loading and disruption of the jets by the ambient gas can alter the jet morphology and feedback being imparted. I will present a suite of simulations of jets propagating through a multiphase ISM and out to circumgalactic scales to explore how jet and environment properties shape observable radio signatures over time. These simulations track ionised and neutral outflows as jets burrow through the surrounding gas. Calculating free-free absorption and interplanetary scintillation signatures in post-processing, I will show how different feedback channels connect to the jets' observable properties, such as source size, broadband radio SEDs, and flux variability. Such approaches will be essential for interpreting data from large surveys, and predicting potential source populations observable with next-generation radio facilities.