TY - JOUR
T1 - CMB distortions from superconducting cosmic strings
AU - Tashiro, Hiroyuki
AU - Sabancilar, Eray
AU - Vachaspati, Tanmay
PY - 2012/5/21
Y1 - 2012/5/21
N2 - 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).
AB - 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).
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U2 - 10.1103/PhysRevD.85.103522
DO - 10.1103/PhysRevD.85.103522
M3 - Article
AN - SCOPUS:84861662333
SN - 1550-7998
VL - 85
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 10
M1 - 103522
ER -