CMB Anisotropy in COBE-DMR-Normalized Flat $\Lambda$ CDM Cosmogony

Abstract

We compute the cosmic microwave background (CMB) anisotropy in a low-density, flat, cosmological constant, cold dark matter model which is normalized to the two-year COBE DMR sky map. Although conclusions regarding model viability must remain tentative until systematic effects are better understood, there are mild indications that these models have more intermediate scale power than is indicated by presently available CMB anisotropy observational data, with old ($t_0\ge 15-16$Gyr), high baryon density (${\Omega }_B\ge 0.0175h^{-2}$), low density (${\Omega }_0\sim 0.2-0.4$) models doing the worst.

9 pages including 2 figures, one 5 pages table: two uuencoded postscript files

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• Using SuZIE arcminute-scale CMB anisotropy data to probe open and flat-ΛCDM cosmogonies
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• Using White Dish CMB Anisotropy Data to Probe Open and Flat-Lambda CDM Cosmogonies
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• OVRO CMB Anisotropy Measurement Constraints on Flat-Lambda and Open CDM Cosmogonies