Observations of supernova remnants (SNRs) are a powerful tool for investigating the later stages of stellar evolution, the properties of the ambient interstellar medium, and the physics of particle acceleration and shocks (Cosmic Rays production). Although radio emission is a prime probe for refining models, high-resolution images at frequencies above 5 GHz are surprisingly lacking. In the frameworks of the Early Science Program with the SRT, we provided, for the first time, single-dish deep imaging at 7 GHz of the SNR IC443 and W44 complexes coupled with spatially-resolved spectra in the 1.5-7 GHz frequency range. Our images were obtained through on-the-fly mapping techniques, providing antenna beam oversampling and resulting in accurate continuum flux density measurements.

Published in Monthly Notices of the Royal Astronomical Society, Volume 470, Issue 2, p.1329-1341