CMB power spectra from cosmic strings: predictions for the Planck satellite and beyond

Abstract

We present a significant improvement over our previous calculations of the cosmic string contribution to cosmic microwave background (CMB) power spectra, with particular focus on sub-WMAP angular scales. These smaller scales are relevant for the now-operational Planck satellite and additional sub-orbital CMB projects that have even finer resolutions. We employ larger Abelian Higgs string simulations than before and we additionally model and extrapolate the statistical measures from our simulations to smaller length scales. We then use an efficient means of including the extrapolations into our Einstein-Boltzmann calculations in order to yield accurate results over the multipole range 2 < l < 4000. Our results suggest that power-law behaviour cuts in for l > 3000 in the case of the temperature power spectrum, which then allows cautious extrapolation to even smaller scales. We find that a string contribution to the temperature power spectrum making up 10% of power at l=10 would be larger than the Silk-damped primary adiabatic contribution for l > 3500. Astrophysical contributions such as the Sunyaev-Zeldovich effect also become important at these scales and will reduce the sensitivity to strings, but these are potentially distinguishable by their frequency-dependence.

18 pages, 16 figures

References in corpus (22)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectra
• High resolution CMB power spectrum from the complete ACBAR data set
• Cosmic Strings and Superstrings
• CMB power spectrum contribution from cosmic strings using field-evolution simulations of the Abelian Higgs model
• Fitting CMB data with cosmic strings and inflation
• Measurements of Secondary Cosmic Microwave Background Anisotropies with the South Pole Telescope
• Cosmic string loops in the expanding universe
• Constraints on Supersymmetric Models of Hybrid Inflation
• Updated constraints on the cosmic string tension
• Small-Angle CMB Temperature Anisotropies Induced by Cosmic Strings
• CMB polarization power spectra contributions from a network of cosmic strings
• B-modes from Cosmic Strings
• B polarization of cosmic microwave background as a tracer of strings
• The CMB temperature bispectrum induced by cosmic strings
• Cosmic microwave anisotropies from BPS semilocal strings
• CMB temperature trispectrum of cosmic strings
• Cosmic Strings
• Tight constraints on F- and D-term hybrid inflation scenarios
• Small Angular Scale Measurements of the CMB Temperature Power Spectrum from QUaD
• Skewness in CMB temperature fluctuations from curved cosmic (super-)strings

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