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ID: 403806.0, MPI für Gravitationsphysik / Observational Relativity and Cosmology
Cosmic-String–Seeded Structure Formation
Authors:Avelino, P. P.; Shellard, E. P. S.; Wu, J. H. P.; Allen, Bruce
Date of Publication (YYYY-MM-DD):1998-09-07
Title of Journal:Physical Review Letters
Volume:81
Issue / Number:10
Start Page:2008
End Page:2011
Review Status:not specified
Audience:Not Specified
Abstract / Description:We describe the results of high-resolution numerical simulations of string-induced structure formation in open universes and those with a nonzero cosmological constant. For models with Γ = Ωh = 0.1–0.2 and a cold dark matter background, we show that the linear density fluctuation power spectrum has both an amplitude at 8h-1 Mpc, σ8, and an overall shape which are consistent within uncertainties with those currently inferred from galaxy surveys. The cosmic string scenario with hot dark matter requires a strongly scale-dependent bias in order to agree with observations.
External Publication Status:published
Document Type:Article
Communicated by:Bruce Allen
Affiliations:MPI für Gravitationsphysik/Teilinstitut Hannover
MPI für Gravitationsphysik/Observational Relativity and Cosmology
External Affiliations:Department of Physics, University of Wisconsin–Milwaukee, P.O. Box 413, Milwaukee, Wisconsin 53201, USA
Identifiers:ISSN:1550-7998
DOI:10.1103/PhysRevLett.81.2008
URL:http://link.aps.org/doi/10.1103/PhysRevLett.81.200...
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