# Large angle cosmic microwave background fluctuations from cosmic strings with a cosmological constant

@article{Landriau2004LargeAC,
title={Large angle cosmic microwave background fluctuations from cosmic strings with a cosmological constant},
author={Martin Landriau and E. P. S. Shellard},
journal={Physical Review D},
year={2004},
volume={69},
pages={023003}
}
• Published 9 February 2003
• Physics
• Physical Review D
In this paper, we present results for large-angle cosmic microwave background anisotropies generated from high resolution simulations of cosmic string networks in a range of flat Friedmann-Robertson-Walker universes with a cosmological constant. Using an ensemble of all-sky maps, we compare with the Cosmic Background Explorer data to infer a normalization (or upper bound) on the string linear energy density $\ensuremath{\mu}.$ For a flat matter-dominated model $({\ensuremath{\Omega}}_{M}=1)$ we…
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