X-ray haloes around supernova remnants

  title={X-ray haloes around supernova remnants},
  author={Gregor Morfill and L. O'C Drury and Bernd Aschenbach},
Recent observations of the Cas-A supernova remnant have shown X-ray emissions not only from the interior, but also from a fainter ‘halo’ extending beyond what is normally regarded as the outer boundary, or shock front1. We suggest here that this may be due to the diffusion of energetic, charged particles out of the remnant giving rise to precursor structure… CONTINUE READING