Cosmic Microwave Background Anisotropies from Scaling Seeds: Fit to Observational Data

Details Cosmic Microwave Background Anisotropies from Scaling Seeds: Fit to Observational Data Cosmic Microwave Background Anisotropies from Scaling Seeds: Fit to Observational Data

1997-06-20

arxiv.org/abs/astro-ph/9706215v2

Phys.Rev.Lett.79:5198-5201,1997

Astronomy and Astrophysics

Astrophysics

LaTeX file 4 pages, 4 postscript figs. revised version, to appear in PRL

Scientific paper

10.1103/PhysRevLett.79.5198

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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