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Cosmic Microwave Background Anisotropies from Scaling Seeds: Fit to Observational Data
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Cosmic Microwave Background Anisotropies from Scaling Seeds: Fit to Observational Data
abstract
We compute cosmic microwave background angular power spectra for scaling seed models of structure formation. A generic parameterization of the energy momentum tensor of the seeds is employed. We concentrate on two regions of parameter space inspired by global topological defects: O(4) texture models and the large-N limit of O(N) models. We use $\chi^{2}$ fitting to compare these models to recent flat-band power measurements of the cosmic microwave background. Only scalar perturbations are considered.
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