Speaker
Description
We are currently carrying out observational studies of SNRs and superbubbles using today’s gamma-ray, X-ray and radio telescopes and will continue our efforts with upcoming telescopes like eROSITA, Cherenkov Telescope Array, HESS and the SKA precursors, including synergistic programmes such as ASKAP-eROSITA. SKA pathfinders' observations in radio at low frequencies with high sensitivity will detect new SNRs in our Galaxy and the MCs, which are either old and too faint, young and too small, or located in a too confusing environment and have thus not been detected yet. In addition, the SKA pathfinders' observations will also allow high-resolution polarimetry and are key to the study of the energetics of accelerated particles as well as the magnetic field strength and configurations. Gamma-ray studies provide answers to the long-standing question in high energy astrophysics: Where do cosmic rays come from? The gamma-ray emission seen from some middle-aged supernova remnants (SNRs) is now known to be from distant populations of cosmic-rays (probably accelerated locally) interacting with gas, but there is still much work to be done in accounting for the Galactic cosmic-ray flux. Young PeV gamma-ray supernova remnants require different techniques to address the question of cosmic-ray acceleration. The Cherenkov Telescope Array will allow us to do this. I will present an overview of our ongoing multi-messenger studies of the young (and some not-so-young) SNRs.
