CMB Anisotropy in COBE-DMR-Normalized Flat $Λ$ CDM Cosmogony

Details CMB Anisotropy in COBE-DMR-Normalized Flat $Λ$ CDM Cosmogony CMB Anisotropy in COBE-DMR-Normalized Flat $Λ$ CDM Cosmogony

1995-12-23

arxiv.org/abs/astro-ph/9512157v1

Astrophys.J. 481 (1997) 22-34

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

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 ($t_0 \geq 15-16$Gyr), high baryon density ($\Omega_B \geq 0.0175 h^{-2}$), low density ($\Omega_0 \sim 0.2-0.4$) models doing the worst.

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