Cosmic strings confront COBE

Allen, Bruce; Caldwell, R. R.; Shellard, E. P. S.; Stebbins, A.; Veeraraghavan, S.

doi:10.1007/3-540-60024-8_108

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Cosmic strings confront COBE

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Allen, Bruce
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Citation

Allen, B., Caldwell, R. R., Shellard, E. P. S., Stebbins, A., & Veeraraghavan, S. (1995). Cosmic strings confront COBE. In F. Occhionero (Ed.), Birth of the universe and fundamental physics: proceedings of the international workshop, held in Rome, Italy, 18 - 21 May 1994 (pp. 251-258). Berlin [u.a.]: Springer.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5BD7-1

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 mgr in the cosmic string scenario.