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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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Traschen et al. (1986) studied this question.
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