Cosmic string loops and large-scale structure

Avelino, P. P.; Shellard, E. P. S.; Wu, J. H. P.; Allen, Bruce

doi:10.1103/PhysRevD.60.023511

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Cosmic string loops and large-scale structure

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

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Citation

Avelino, P. P., Shellard, E. P. S., Wu, J. H. P., & Allen, B. (1999). Cosmic string loops and large-scale structure. Physical Review D, 60(2): 023511. doi:10.1103/PhysRevD.60.023511.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5837-1

Abstract

We investigate the contribution made by small loops from a cosmic string network as seeds for large-scale structure formation. We show that cosmic string loops are highly correlated with the long-string network on large scales and therefore contribute significantly to the power spectrum of density perturbations if the average loop lifetime is comparable to or above one Hubble time. This effect further improves the large-scale bias problem previously identified in earlier studies of cosmic string models.