Topological Defects in an Open Universe

Details Topological Defects in an Open Universe Topological Defects in an Open Universe

1994-02-17

arxiv.org/abs/astro-ph/9402044v1

Astronomy and Astrophysics

Astrophysics

11 pages and 4 figures, Elsevier Publisher's LaTeX, POP-546

Scientific paper

10.1016/0920-5632(94)90215-1

(To appear in Nuclear Physics B Supplements Proceedings section) 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 length 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.

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