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Cosmic Strings as a Candidate for Dark Matter. Astrophysical Formulae

Published online by Cambridge University Press:  03 August 2017

M.P. Dabrowski
Affiliation:
N.Copernicus Astron. Center, Bartycka 18, 00-716 Warszawa, Poland
J. Stelmach
Affiliation:
Inst. of Phys., Univ. of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland

Extract

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We consider homogeneous, isotropic universe with arbitrary curvature (k=0, ±1), filled with dust, radiation, ˄-term and a set of noninteracting strings (i.e. scaling as ρs ∼ R−2, hence yielding string dominated universe). For such model we find analytic solution of the Friedman equation using Weierstrass functions. We realize that addition of (rather unrealistic component) stable domain walls (ρw ∼ R−1) to the model, does not essentially complicate the calculations.

Type
Appendix 1: Poster Papers
Copyright
Copyright © Reidel 1988