Cosmic Microwave Background Anisotropy Observations

Details Cosmic Microwave Background Anisotropy Observations Cosmic Microwave Background Anisotropy Observations

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ssrv..100...15r&link_type=abstract

Space Science Reviews, v. 100, Issue 1/4, p. 15-28 (2002).

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This paper discusses the status of observations of Cosmic Microwave Background (CMB) anisotropies. The first detections of primary anisotropies in the CMB, achieved about 10 years ago, boosted a large number of ground-based and balloon-borne experiments that have delineated the CMB angular power spectrum up to spherical harmonic multipole l~1000. A wealth of information on cosmological parameters is being revealed by these measurements. Very recently, the positions and amplitudes of the first and second peak in the power spectrum have been determined providing strong support to inflationary models with adiabatic primordial density perturbations. A total density equal to the critical value, and baryonic density consistent with Big Bang nucleosynthesis are the first results emerging from the current CMB data. Future experiments on ground (mainly interferometers), in balloons and from space (MAP and Planck missions) have the potential to constrain more than 10 cosmological parameters with high precision.

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