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| Onde Acustiche Barioniche× | Effetto Sunyaev-Zel'dovich× | |
|---|---|---|
| Campo | Astronomia | Astronomia |
| Famiglia | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1970 | 1972 |
| Ideatore≠ | Piet Peebles | Rashid Sunyaev |
| Tipo≠ | Statistical cosmological measurement | Observational detection technique |
| Fonte seminale≠ | Peebles, P. J. E., & Yu, J. T. (1970). Primeval adiabatic perturbation in an expanding universe. Astrophysical Journal, 162, 815-836. DOI ↗ | Sunyaev, R. A., & Zel'dovich, Y. B. (1972). The observations of the relic radiation as a test of the nature of X-ray radiation from clusters of galaxies. Comments on Astrophysics and Space Physics, 4(4), 173-178. link ↗ |
| Alias | BAO, Baryon Oscillations, Standard Ruler Method | SZ Effect, Inverse Compton Scattering, SZE |
| Correlati | 3 | 3 |
| Sintesi≠ | Baryon Acoustic Oscillations are imprints of sound waves in the early universe that appear as a characteristic scale in the large-scale distribution of galaxies today. First predicted theoretically by Piet Peebles and Joseph Yu in 1970, and detected observationally by the Sloan Digital Sky Survey in 2005, BAO provides a standard ruler for measuring cosmic distances and constraining the expansion history of the universe. | The Sunyaev-Zel'dovich effect is a phenomenon in which the cosmic microwave background (CMB) is distorted as photons travel through hot gas in galaxy clusters. Proposed by Rashid Sunyaev and Yakov Zel'dovich in 1972, this effect provides a powerful method for detecting distant galaxy clusters and measuring fundamental cosmological parameters without distance assumptions. |
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