Description: | Supernova remnants (SNRs) result from the interaction between an exploded star and its surrounding circumstellar and interstellar medium. They are a crucial contributor to feedback in galaxies, as they perturb, enrich, ionise, and heat their environments, accelerate cosmic rays, and their energy input drives the large-scale and long-term evolution of galaxies. In this talk, I will discuss how the SNR population of the Milky Way interacts with its surroundings. In particular, I will show
how LOFAR is a tool for discovering new remnants, and thus better characterise their contribution to the energetics of the Galaxy. I will give examples of how we can use low-frequency radio observations to understand the ambient medium of a source, and high-frequency radio observations to probe the detailed feedback process by which the SNR shock interacts with neighbouring, dense material. |