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How Well Can Cosmological Parameters Be Estimated from CMB Observations?

J. Richard Bond·Richard L. Davis·Paul J. Steinhardt
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Abstract

The CMB anisotropy depends sensitively upon the slope and amplitude of primordial density and gravitational wave fluctuations, the baryon density, the Hubble constant, the cosmological constant, the ionization history, {\it etc.} We report on recent work showing how well multi-scale measurements of the anisotropy power spectrum can resolve these factors. We identify a hypersurface in cosmic parameter space that can be accurately localized by observations, but along which the likelihood will hardly vary. Other cosmic observations will be needed to break this degeneracy.

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J. Richard Bond, Richard L. Davis, Paul J. Steinhardt. 1994-02-16. How Well Can Cosmological Parameters Be Estimated from CMB Observations?. https://arxiv.org/abs/astro-ph/9402041

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