Process / pipelineCosmological probe
CMB Anisotropy Analysis
The Cosmic Microwave Background is the ancient light from when the universe first became transparent, about 380,000 years after the Big Bang. Its tiny temperature variations (anisotropies) across the sky encode a wealth of information about the universe's composition, geometry, and history. First discovered by Arno Penzias and Robert Wilson in 1965, detailed measurements of CMB anisotropies have become the most powerful probe of cosmology.
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Sources
- Penzias, A. A., & Wilson, R. W. (1965). A measurement of excess antenna temperature at 4080 Mc/s. Astrophysical Journal, 142, 419-421. DOI: 10.1086/148307 ↗
- Smoot, G. F., et al. (1992). Structure in the COBE differential microwave radiometer first-year maps. Astrophysical Journal Letters, 396(1), L1-L5. DOI: 10.1086/186504 ↗
- Planck Collaboration (2018). Planck 2018 results. VI. Cosmological parameters. Astronomy & Astrophysics, 641, A6. DOI: 10.1051/0004-6361/201833910 ↗