Microwave anisotropies from cosmic strings

Details Microwave anisotropies from cosmic strings Microwave anisotropies from cosmic strings

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..34..919t&link_type=abstract

Physical Review D (Particles and Fields), Volume 34, Issue 4, 15 August 1986, pp.919-930

Physics

57

Relativity And Gravitation, Background Radiations, Observational Cosmology

Scientific paper

The anisotropies in the microwave background radiation in the cosmic-string theory of galaxy formation are calculated using a general-relativistic analysis. On small scales (theta~=0.5°) we predict <(T1-T2)2>1/2/T~=4× 10-6, on large scales (theta~=6°) <(T1-T2)2>1/2/T~=10 -5. The dominant effect is the Sachs-Wolfe effect from string loops. The above amplitudes are significantly smaller than the best current observational upper bounds.

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