Constraints on Superconducting Cosmic Strings from Early Reionization

Abstract

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.

7 pages, 6 figures, Submitted to PRD

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Cited by in corpus (15)

• Beyond the Standard Models with Cosmic Strings
• Radio Broadcasts from Superconducting Strings
• Constraints on Superconducting Cosmic Strings from the Global $21$-cm Signal before Reionization
• Massive black holes at high redshifts from superconducting cosmic strings
• Cosmic Strings in Hidden Sectors: 2. Cosmological and Astrophysical Signatures
• Superconducting cosmic strings as sources of cosmological fast radio bursts
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• A Boltzmann treatment for the vorton excess problem
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• The Hydrogen Mixing Portal, Its Origins, and Its Cosmological Effects