CMB temperature trispectrum of cosmic strings

Details CMB temperature trispectrum of cosmic strings CMB temperature trispectrum of cosmic strings

2009-11-06

arxiv.org/abs/0911.1241v2

Phys.Rev.D81:063505,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 3 figures, uses RevTeX. Misprints corrected, matches published version

Scientific paper

10.1103/PhysRevD.81.063505

We provide an analytical expression for the trispectrum of the Cosmic Microwave Background (CMB) temperature anisotropies induced by cosmic strings. Our result is derived for the small angular scales under the assumption that the temperature anisotropy is induced by the Gott-Kaiser-Stebbins effect. The trispectrum is predicted to decay with a non-integer power-law exponent l^(-r) with 6

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