Authors
Eiichiro Komatsu, J Dunkley, MR Nolta, CL Bennett, B Gold, G Hinshaw, N Jarosik, D Larson, M Limon, L Page, DN Spergel, M Halpern, RS Hill, A Kogut, SS Meyer, GS Tucker, JL Weiland, E Wollack, EL Wright
Publication date
2009/2/11
Journal
The Astrophysical Journal Supplement Series
Volume
180
Issue
2
Pages
330
Publisher
IOP Publishing
Description
The Wilkinson Microwave Anisotropy Probe (WMAP) 5-year data provide stringent limits on deviations from the minimal, six-parameter Λ cold dark matter model. We report these limits and use them to constrain the physics of cosmic inflation via Gaussianity, adiabaticity, the power spectrum of primordial fluctuations, gravitational waves, and spatial curvature. We also constrain models of dark energy via its equation of state, parity-violating interaction, and neutrino properties, such as mass and the number of species. We detect no convincing deviations from the minimal model. The six parameters and the corresponding 68% uncertainties, derived from the WMAP data combined with the distance measurements from the Type Ia supernovae (SN) and the Baryon Acoustic Oscillations (BAO) in the distribution of galaxies, are: Ω b h 2= 0.02267+ 0.00058− 0.00059, Ω c h 2= 0.1131±0.0034, Ω Λ= 0.726±0.015, n s= 0.960±0.013 …
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