Entropy Perturbations due to Cosmic Strings

Details Entropy Perturbations due to Cosmic Strings Entropy Perturbations due to Cosmic Strings

1996-02-22

arxiv.org/abs/astro-ph/9602116v1

Phys.Rev.D53:5339-5343,1996

Astronomy and Astrophysics

Astrophysics

9 pages, REVTeX

Scientific paper

10.1103/PhysRevD.53.R5339

We examine variations in the equation of state of the cosmic string portion of the cosmological fluid which lead to perturbations of the background matter density. These fluctuations in the equation of state are due to variations in the local density of cosmic string loops and gravitational radiation. Constructing a crude model of the distribution of entropy perturbations, we obtain the resulting fluctuation spectrum using a gauge-invariant formalism. We compute the resulting cosmic microwave background anisotropy, and estimate the effect of these perturbations on the cosmic string structure formation scenario.

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