TY - JOUR
T1 - Topological defects in an open universe
AU - Spergel, D. N.
AU - Pen, U.
N1 - Funding Information:
*Research supported by NSF AST88-58145 (PYI), AST90-20863, NASA NAGW-2448 (ATP) and the NSF Grand Challenge Cosmology Consortium
PY - 1994/5
Y1 - 1994/5
N2 - 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.
AB - 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.
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U2 - 10.1016/0920-5632(94)90215-1
DO - 10.1016/0920-5632(94)90215-1
M3 - Article
AN - SCOPUS:43949148703
VL - 35
SP - 17
EP - 27
JO - Nuclear and Particle Physics Proceedings
JF - Nuclear and Particle Physics Proceedings
SN - 2405-6014
IS - C
ER -