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Dark energy and the cosmic microwave background radiationWe find that current cosmic microwave background 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 nonrelativistic matter is much less than critical. Together, these results are evidence, independent of supernovae data, for dark energy in the Universe.
Document ID
20040129921
Document Type
Reprint (Version printed in journal)
Authors
Dodelson, S. (NASA Headquarters Washington, DC United States)
Knox, L.
Date Acquired
August 22, 2013
Publication Date
April 17, 2000
Publication Information
Publication: Physical review letters
Volume: 84
Issue: 16
ISSN: 0031-9007
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other