Probing cosmic ray acceleration in supernova remnants using molecular gas observations

A. PETRIELLA

Salta

Congreso; Science with LLAMA; 2022

MINCyT y FAPESP

One of the consequences of the interaction between supernova remnants and the interstellar medium is the production of gamma rays: protons accelerated in the shock fronts may collide with nearby interstellar clouds and produce radiation of hadronic origin in the GeV and/or TeV bands. For this reason, the analysis of the interaction between supernova remnants and the surrounding gas may provide empirical evidence supporting their role as cosmic rays factories. We compile a list of supernova remnants associated with GeV and/or TeV sources that can be studied with the LLAMA Observatory to look for morphological and spectral signs of shocked molecular gas. From the analysis of the distribution and the physical parameters of this molecular material, we plan to determine the origin of the gamma-ray emission and to contribute to the understanding of supernova remnants as cosmic ray accelerators.