Topological defects in an open universe

D. N. Spergel, U. Pen

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)17-27
Number of pages11
JournalNuclear Physics B (Proceedings Supplements)
Issue numberC
StatePublished - May 1994

All Science Journal Classification (ASJC) codes

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


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