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  Cosmic-String–Seeded Structure Formation

Avelino, P. P., Shellard, E. P. S., Wu, J. H. P., & Allen, B. (1998). Cosmic-String–Seeded Structure Formation. Physical Review Letters, 81(10), 2008-2011. doi:10.1103/PhysRevLett.81.2008.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-593D-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-593E-B
Genre: Journal Article

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prl-81-2008.pdf (Publisher version), 172KB
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Avelino, P. P.1, Author
Shellard, E. P. S., Author
Wu, J. H. P., Author
Allen, Bruce2, Author              
Affiliations:
1External Organizations, escidoc:persistent13              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24011              

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 Abstract: 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.

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 Dates: 1998-09-07
 Publication Status: Published in print
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 81 (10) Sequence Number: - Start / End Page: 2008 - 2011 Identifier: ISSN: 1550-7998