Cosmic string loops and large-scale structure

Details Cosmic string loops and large-scale structure Cosmic string loops and large-scale structure

1998-10-27

arxiv.org/abs/astro-ph/9810439v1

Phys.Rev.D60:023511,1999

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevD.60.023511

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.

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