Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004458975> ?p ?o ?g. }
- W2004458975 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." @default.
- W2004458975 created "2016-06-24" @default.
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- W2004458975 date "2010-09-03" @default.
- W2004458975 modified "2023-10-01" @default.
- W2004458975 title "CMB power spectra from cosmic strings: Predictions for the Planck satellite and beyond" @default.
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- W2004458975 doi "https://doi.org/10.1103/physrevd.82.065004" @default.
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