ACBAR was an experiment to measure the anisotropy of the
Cosmic microwave background
The cosmic microwave background (CMB, CMBR), or relic radiation, is microwave radiation that fills all space in the observable universe. With a standard optical telescope, the background space between stars and galaxies is almost completely dar ...
. It was active 2000-2008.
The ACBAR 145 GHz measurements were the most precise high multipole measurements of the CMB at the time.
See also
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Cosmic microwave background experiments
This list is a compilation of experiments measuring the cosmic microwave background radiation, cosmic microwave background (CMB) radiation anisotropies and polarization since the first detection of the CMB by Arno Allan Penzias, Penzias and Rob ...
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Observational cosmology
Observational cosmology is the study of the structure, the evolution and the origin of the universe through observation, using instruments such as telescopes and cosmic ray detectors.
Early observations
The science of physical cosmology as it is ...
Further reading
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External links
ACBAR Homepage
Cosmic microwave background experiments
Astronomical experiments in the Antarctic
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