Updated constraints on superconducting cosmic strings from the astronomy of fast radio bursts

Abstract

In this article we update constraints on superconducting cosmic strings (SCSs) in light of the recent observational developments of fast radio bursts (FRBs) astronomy. Assuming strings follow an exponential distribution characterized by current, we show that two parameters in our context, which are the characteristic tension ($G\mu$) and a parameter which describes the aforementioned exponential distribution ($I_c$), can be constrained by FRB experiments. Particularly, we investigate data sets from Parkes and ASKAP. We looked through a parameter space where $G\mu \sim [10^{-17},10^{-12}]$ and $I_c\sim [10^{-1},10^2]$ GeV, and found our results show that Parkes jointly with ASKAP can constrain the parameter space for SCSs.

arXiv comment7 pages, 3 figures

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