Cosmic Strings in an Open Universe with Baryonic and Non-Baryonic Dark Matter

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 $\mu$, the energy per unit length of the string network. Some comments are made on mechanisms by which structures are formed in the two theories.

uu-encoded compressed tar of postscript files, Imperial/TP/94-95/02

References in corpus (2)

• $\Pi$ in the Sky ? Microwave Anisotropies from Cosmic Defects
• Cosmic Microwave Anisotropies from Topological Defects in an Open Universe

Cited by in corpus (8)

• Cosmic Microwave Background Anisotropies from Scaling Seeds: Global Defect Models
• A detail study of defect models for cosmic structure formation
• Structure formation by cosmic strings with a cosmological constant
• Cosmic-String-Seeded Structure Formation
• Cosmic Strings in an Open Universe: Quantitative Evolution and Observational Consequences
• Topological defects and open inflation
• String Evolution in Open Universes
• Cosmic String Network Evolution in arbitrary Friedmann-Lemaitre models