TY - JOUR
T1 - Constraints on superconducting cosmic strings from early reionization
AU - Tashiro, Hiroyuki
AU - Sabancilar, Eray
AU - Vachaspati, Tanmay
PY - 2012/6/21
Y1 - 2012/6/21
N2 - Electromagnetic radiation from superconducting cosmic string loops can reionize neutral hydrogen in the Universe at very early epochs, and affect the cosmic microwave background 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 cosmic microwave background spectral distortions. Over a wide range of string tensions, the current on the string has to be less than ∼107GeV.
AB - Electromagnetic radiation from superconducting cosmic string loops can reionize neutral hydrogen in the Universe at very early epochs, and affect the cosmic microwave background 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 cosmic microwave background spectral distortions. Over a wide range of string tensions, the current on the string has to be less than ∼107GeV.
UR - http://www.scopus.com/inward/record.url?scp=84862743221&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862743221&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.85.123535
DO - 10.1103/PhysRevD.85.123535
M3 - Article
AN - SCOPUS:84862743221
SN - 1550-7998
VL - 85
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 12
M1 - 123535
ER -