Abstract
We investigate the cosmological and astrophysical constraints on superconducting cosmic strings (SCSs).SCS loops emit strong bursts of electromagnetic waves, which might affect various cosmological and astrophysical observations.We take into account the effect on the CMB anisotropy, CMB blackbody spectrum, BBN,observational implications on radio wave burst and X-ray or γ-ray events, andstochastic gravitational wave background measured by pulsar timing experiments.We then derive constraints on the parameters of SCS from current observations and estimate prospects for detecting SCS signatures in on-going observations. As a result, we find that these constraints exclude broad parameter regions, and also that on-going radio wave observations can probe large parameter space.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have