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arXiv · 1202.2474

CMB Distortions from Superconducting Cosmic Strings

Hiroyuki Tashiro·Eray Sabancilar·Tanmay Vachaspati
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Abstract

We reconsider the effect of electromagnetic radiation from superconducting strings on cosmic microwave background (CMB) mu- and y-distortions and derive present (COBE-FIRAS) and future (PIXIE) constraints on the string tension, mu_s, and electric current, I. We show that absence of distortions of the CMB in PIXIE will impose strong constraints on mu_s and I, leaving the possibility of light strings (G mu_s < 10^{-18}) or relatively weak currents (I < 10 TeV).

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Hiroyuki Tashiro, Eray Sabancilar, Tanmay Vachaspati. 2012-12-14. CMB Distortions from Superconducting Cosmic Strings. https://doi.org/10.1103/physrevd.85.103522

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