Perturbations from cosmic strings in cold dark matter

Physics

Scientific paper

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Cosmology, Dark Matter, Perturbation Theory, String Theory, Normal Density Functions, Power Spectra

Scientific paper

A systematic linear analysis of the perturbations induced by cosmic strings in cold dark matter is presented. The power spectrum is calculated and it is found that the strings produce a great deal of power on small scales. It is shown that the perturbations on interesting scales are the result of many uncorrelated string motions, which indicates a much more Gaussian distribution than was previously supposed.

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