Topological defects in an open universe

D. N. Spergel; U. Pen

doi:10.1016/0920-5632(94)90215-1

Topological defects in an open universe

D. N. Spergel, U. Pen

Research output: Contribution to journal › Article › peer-review

Abstract

This talk will explore the evolution of topological defects in an open universe. The rapid expansion of the universe in an open model slows defects and suppresses the generation of CBR fluctuations at large angular scale as does the altered relationship between angle and lenght in an open universe. Defect models, when normalized to COBE in an open universe, predict a galaxy power spectrum consistent with the galaxy power spectrum inferred from the galaxy surveys and do not require an extreme bias. Neither defect models in a flat universe nor standard inflationary models can fit either the multipole spectrum or the power spectrum inferred from galaxy surveys.

Original language	English (US)
Pages (from-to)	17-27
Number of pages	11
Journal	Nuclear Physics B (Proceedings Supplements)
Volume	35
Issue number	C
DOIs	https://doi.org/10.1016/0920-5632(94)90215-1
State	Published - May 1994

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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title = "Topological defects in an open universe",

abstract = "This talk will explore the evolution of topological defects in an open universe. The rapid expansion of the universe in an open model slows defects and suppresses the generation of CBR fluctuations at large angular scale as does the altered relationship between angle and lenght in an open universe. Defect models, when normalized to COBE in an open universe, predict a galaxy power spectrum consistent with the galaxy power spectrum inferred from the galaxy surveys and do not require an extreme bias. Neither defect models in a flat universe nor standard inflationary models can fit either the multipole spectrum or the power spectrum inferred from galaxy surveys.",

author = "Spergel, {D. N.} and U. Pen",

note = "Funding Information: *Research supported by NSF AST88-58145 (PYI), AST90-20863, NASA NAGW-2448 (ATP) and the NSF Grand Challenge Cosmology Consortium",

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