Cosmic string, hydrodynamics and microanisotropies in the cosmic background radiation

Details Cosmic string, hydrodynamics and microanisotropies in the cosmic background radiation Cosmic string, hydrodynamics and microanisotropies in the cosmic background radiation

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.323...42c&link_type=abstract

Nature (ISSN 0028-0836), vol. 323, Sept. 4, 1986, p. 42-44.

Physics

3

Anisotropy, Cosmology, Hydrodynamics, Relic Radiation, String Theory, Baryons, Broken Symmetry, Grand Unified Theory, Loops

Scientific paper

'Cosmic string' formed at the mass scale of GUT (grand unified theory) symmetry breaking (Mx ≅ 2×1015GeV) is typified by a mass per unit length μG/c2 ≅ 2×10-6 in dimensionless units, corresponding to μ ≅ 2.6×1021kg m-1. It has been conjectured that loops of such cosmic string, presumably with radii in the range 1 - 10 kpc, might provide the seed perturbations which could initiate galaxy formation. The author demonstrates the possibility of detecting such loops by observing the distortions in the cosmic background radiation induced by the hydrodynamic interaction of isolated loops of cosmic string with the cosmic fluid, during the epoch immediately preceding recombination.

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