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| Φαινόμενο Sunyaev-Zel'dovich× | Βαρυονικές Ακουστικές Ταλαντώσεις× | |
|---|---|---|
| Πεδίο | Αστρονομία | Αστρονομία |
| Οικογένεια | Process / pipeline | Process / pipeline |
| Έτος προέλευσης≠ | 1972 | 1970 |
| Δημιουργός≠ | Rashid Sunyaev | Piet Peebles |
| Τύπος≠ | Observational detection technique | Statistical cosmological measurement |
| Θεμελιώδης πηγή≠ | 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 ↗ | Peebles, P. J. E., & Yu, J. T. (1970). Primeval adiabatic perturbation in an expanding universe. Astrophysical Journal, 162, 815-836. DOI ↗ |
| Εναλλακτικές ονομασίες | SZ Effect, Inverse Compton Scattering, SZE | BAO, Baryon Oscillations, Standard Ruler Method |
| Συναφείς | 3 | 3 |
| Σύνοψη≠ | 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. | 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. |
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