PARMIGIANO

Cosmic rays (CRs) are relativistic charged particles, fundamental constituents of galaxies and are suspected to play a key role in the cycle of matter, stellar formation, and galaxy formation. Despite their discovery more than 110 years ago, fundamental questions of CR astrophysics still do not have a final answer: What is/are the sources of CRs? What physical processes drive the life cycle of CRs in our Galaxy? This is in part due to our limited ability to interpret the complex emission powered by CRs in the vicinity of their original accelerators. This reveals our poor understanding of essential facets of the phenomenon, such as the transition from a collection of numerous isolated natural particle accelerators to an extended population of CRs filling the whole Galaxy. The project PARMIGIANO is aimed at solving this problem by developing the framework needed to gather and confront gamma-ray and multi-wavelength observations from recent and next-generation observatories to phenomenological models of appropriate complexity. The tools developed will be made available to the community (open-source) with the ambition that they will become essential to interpret the observations from the several hundred of extended sources anticipated with CTAO, the Cherenkov Telescope Array Observatory, largest gamma-ray observatory in the world currently being built.