Cosmic Strings Confront COBE
Abstract
We investigate large-angle anisotropies in the cosmic microwave radiation background which are induced by cosmic strings. We numerically evolve a string network from a redshift Z-100 to the present day and we use this data to generate a full-sky temperature map using sophisticated Green's function methods. Based on a limited number of realizations, we have compared the results of our simulations with the observations of the COBS-DMR experiment, demonstrating broad consistency. We have obtained a preliminary normalization for the string mass-per-unit-length μ in the cosmic string scenario.
- Publication:
-
Birth of the Universe and Fundamental Physics
- Pub Date:
- 1995
- DOI:
- 10.1007/3-540-60024-8_108
- Bibcode:
- 1995LNP...455..251A