Cosmic Strings in an Open Universe with Baryonic and Non-Baryonic Dark Matter
Pedro Ferreira
Abstract
We study the effects of cosmic strings on structure formation in open universes. We calculate the power spectrum of density perturbations for two class of models: one in which all the dark matter is non baryonic (CDM) and one in which it is all baryonic (BDM). Our results are compared to the 1 in 6 IRAS QDOT power spectrum. The best candidates are then used to estimate μ, the energy per unit length of the string network. Some comments are made on mechanisms by which structures are formed in the two theories.
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