Cosmic string induced CMB maps

Abstract

We compute maps of CMB temperature fluctuations seeded by cosmic strings using high resolution simulations of cosmic strings in a Friedmann-Robertson-Walker universe. We create full-sky, 18-degree and 3-degree CMB maps, including the relevant string contribution at each resolution from before recombination to today. We extract the angular power spectrum from these maps, demonstrating the importance of recombination effects. We briefly discuss the probability density function of the pixel temperatures, their skewness and kurtosis.

5 pages, 4 figures, submitted to PRD; v2: 6 pages, 5 figures, matches published version

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• COrE (Cosmic Origins Explorer) A White Paper
• Seeking String Theory in the Cosmos
• Cosmic strings and their induced non-Gaussianities in the cosmic microwave background
• Constraining topological defects with temperature and polarization anisotropies
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• All sky CMB map from cosmic strings integrated Sachs-Wolfe effect
• Wavelet-Bayesian inference of cosmic strings embedded in the cosmic microwave background
• Dynamical behavior of the $C$-metric: charged scalar fields, quasinormal modes and superradiance
• A Boltzmann treatment for the vorton excess problem
• Level Crossing Analysis of Cosmic Microwave Background Radiation: A method for detecting cosmic strings
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• Evolution of FLRW spacetime after the birth of a cosmic string
• Real space CMB temperature and polarization formulas