Dodelson S, Knox L
NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
Phys Rev Lett. 2000 Apr 17;84(16):3523-6. doi: 10.1103/PhysRevLett.84.3523.
We 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.
我们发现，当前的宇宙微波背景辐射各向异性数据强烈限制了宇宙的平均空间曲率接近零，或者等效地说，总能量密度接近临界值——这正如暴胀理论所预测的那样。该结果对于数据集的编辑以及其他宇宙学参数（总共七个，包括宇宙学常数）的变化具有稳健性。其他论证思路表明，非相对论性物质的能量密度远小于临界值。这些结果共同构成了宇宙中存在暗能量的证据，且与超新星数据无关。
