Abstract
We simulate the anisotropy in the cosmic microwave background (CMB) induced by cosmic strings. By numerically evolving a network of cosmic strings we generate full-sky CMB temperature anisotropy maps. Based on 192 maps, we compute the anisotropy power spectrum for multipole moments . By comparing with the observed temperature anisotropy, we set the normalization for the cosmic string mass per unit length , obtaining , which is consistent with all other observational constraints on cosmic strings. We demonstrate that the anisotropy pattern is consistent with a Gaussian random field on large angular scales.
- Received 22 May 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.3061
©1996 American Physical Society