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Patterns of the cosmic microwave background from evolving string networks


A network of cosmic strings generated in the early Universe may still exist today. As the strings move across the sky, they produce, by gravitational lensing, a characteristic pattern of anisotropies in the temperature of the cosmic microwave background. The observed absence of such anisotropies places constraints on theories in which galaxy formation is seeded by strings, but it is anticipated that the next generation of experiments will detect them.

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Bouchet, F., Bennett, D. & Stebbins, A. Patterns of the cosmic microwave background from evolving string networks. Nature 335, 410–414 (1988).

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