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Constraints on Superconducting Cosmic Strings from Early Reionization

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arxiv 1204.3643 v1 pith:5SBJNY37 submitted 2012-04-16 astro-ph.CO hep-phhep-th

Constraints on Superconducting Cosmic Strings from Early Reionization

classification astro-ph.CO hep-phhep-th
keywords stringcosmicconstraintscurrentearlysuperconductingaffectangular
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Electromagnetic radiation from superconducting cosmic string loops can reionize neutral hydrogen in the universe at very early epochs, and affect the cosmic microwave background (CMB) temperature and polarization correlation functions at large angular scales. We constrain the string tension and current using WMAP7 data, and compare with earlier constraints that employed CMB spectral distortions. Over a wide range of string tensions, the current on the string has to be less than 10^7 GeV.

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Cited by 1 Pith paper

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  1. Gravitational Waves from Superconducting Cosmic Strings

    astro-ph.CO 2026-07 conditional novelty 7.0

    Lattice simulations show the gravitational-wave spectrum from superconducting cosmic strings develops a coupling-dependent suppression at high frequencies, distinguishing them from ordinary Abelian–Higgs strings.