Superconducting cosmic string loops emit vector radiation whose strength is fitted in this paper; including this channel suppresses the predicted gravitational wave background for strong coupling and can make the spectrum compatible with NANOGrav for large currents.
Revisit of Y-junctions for strings with currents: transonic elastic case
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We studied the formation of Y-junctions for transonic elastic strings. In particular, using the gen-eral solution for these strings, which is described by left- and right-moving modes, we obtained thedynamics of kinks and Y-junctions. Considering the linearized ansatz for straight strings, we con-structed the parameter region space for which the formation of Y-junctions due to strings collisionsis allowed.
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Stochastic Gravitational Wave Background from Chiral Superconducting Cosmic Strings
Superconducting cosmic string loops emit vector radiation whose strength is fitted in this paper; including this channel suppresses the predicted gravitational wave background for strong coupling and can make the spectrum compatible with NANOGrav for large currents.