Influence of Pulse Rising Time on Plasma Irradiation Effect

Abstract

We consider a local cosmic string described by the Abelian-Higgs model in the framework of scalar-tensor gravities. We find the metric of the cosmic string in the weakfield approximation. The propagation of particles and light is analysed in this background. This analysis shows that the (unperturbed) cosmic string in scalar-tensor theory presents some analogous features to the wiggly cosmic string in general relativity.