Dark Energy and the CMB

Details Dark Energy and the CMB Dark Energy and the CMB

1999-09-28

arxiv.org/abs/astro-ph/9909454v2

Phys.Rev.Lett. 84 (2000) 3523

Astronomy and Astrophysics

Astrophysics

4 pages, final PRL published version, software package for calculating \chi^2 from all CMB data available at http://flight.u

Scientific paper

10.1103/PhysRevLett.84.3523

We find that current Cosmic Microwave Background (CMB) anisotropy data strongly constrain the mean spatial curvature of the Universe to be near zero, or, equivalently, the total energy density to be near critical-as predicted by inflation. This result is robust to editing of data sets, and variation of other cosmological parameters (totaling seven, including a cosmological constant). Other lines of argument indicate that the energy density of non-relativistic matter is much less than critical. Together, these results are evidence, independent of supernovae data, for dark energy in the Universe.

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