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Cosmological Perturbations from Cosmic Strings

Mark Hindmarsh
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Abstract

Some aspects of the theory of cosmological perturbations from cosmic strings and other topological defects are outlined, with particular reference to a simple example: a spatially flat CDM-dominated universe. The conserved energy-momentum pseudo-tensor is introduced, and the equation for the density perturbation derived from it. It is shown how the scaling hypothesis for defect evolution results in a Harrison-Zel'dovich spectrum for wavelengths well inside the horizon.

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Mark Hindmarsh. 1994-12-20. Cosmological Perturbations from Cosmic Strings. https://doi.org/10.1016/0920-5632(95)00449-j

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