Cosmic Microwave Background non-Gaussian signatures from analytical texture models

Abstract

Using an analytical model for the Cosmic Microwave Background anisotropies produced by textures, we compute the resulting collapsed three--point correlation function and the {\it rms} expected value due to the cosmic variance. We apply our calculations to the {\sl COBE}--DMR experiment and test the consistency of the model with the observational results. We also show that an experiment with smaller angular resolution can put bounds to the model parameters.

13 pp, RevTeX, 4 PostScript figures, to appear in Phys.Rev.D

References in corpus (1)

• Large Scale Structure Formation with Global Topological Defects. A new Formalism and its implementation by numerical simulations

Cited by in corpus (14)

• Non-Gaussianity in multi-field inflation
• Non-Gaussianity from Inflation
• Is the cosmic microwave background really non-Gaussian?
• Cosmic microwave background bispectrum on small angular scales
• Cosmic microwave background bispectrum and slow roll inflation
• Gravitational waves generated by second order effects during inflation
• Best Unbiased Estimators for the Three-Point Correlators of the Cosmic Microwave Background Radiation
• Projected bispectrum in spherical harmonics and its application to angular galaxy catalogues
• Non-Gaussian Spectra
• Finite volume effects for non-Gaussian multi-field inflationary models
• Non-Gaussian Signatures from the Postinflationary Early Universe
• The dependence of cosmological parameters estimated from the microwave background on non-gaussianity
• Searching for Long Strings in CMB Maps
• Phenomenological aspects of dark energy dominated cosmologies