Radio emission from young supernova remnants. II - Evolution and dependence on characteristics of the progenitor and the external medium

Abstract

During the evolution of a supernova remnant (SNR), some of the explosion energy is converted to relativistic electron energy at the shock front; and, to the extent that the circumstellar medium (CSM) is clumpy, turbulent dynamo processes associated with the growth of Rayleigh-Taylor (R-T) fingers convert explosion kinetic energy into magnetic field energy. Phenomenological descriptions of these processes have been incorporated into a one-dimensional, spherical hydrodynamics program. Input parameters used in the calculations included the explosion energy, the mean CSM density, and various characteristics of the clump CSM