On the Continuum Radio Spectrum of Cas A: Possible Evidence of Non-Linear Particle Acceleration

Onić, D.; Urošević, D.

Serbia

Abstract

The integrated radio spectrum of Cassiopeia A in continuum was analyzed with special emphasis on possible high-frequency spectral curvature. We conclude that the most probable scenario is that Planck’s new data reveal the imprint of nonlinear particle acceleration in the case of this young Galactic supernova remnant.

2015 The Astrophysical Journal
Planck 15