CMB distortions from superconducting cosmic strings

Hiroyuki Tashiro, Eray Sabancilar, Tanmay Vachaspati

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

We reconsider the effect of electromagnetic radiation from superconducting strings on cosmic microwave background μ and y distortions and derive present (COBE-FIRAS) and future (PIXIE) constraints on the string tension, μ s, and electric current, I. We show that absence of distortions of the cosmic microwave background in PIXIE will impose strong constraints on μ s and I, leaving the possibility of light strings (Gμ s10 -18) or relatively weak currents (I10TeV).

Original languageEnglish (US)
Article number103522
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number10
DOIs
StatePublished - May 21 2012

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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