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Sunyaev-Zeldovich effect
(redirected from Sunyaev-Zel'dovich effect)

    Also found in: Acronyms, Wikipedia 0.01 sec.
Sunyaev-Zeldovich effect [su̇n¦yä‚ef zel′dō‚vich i‚fekt]
(astronomy)
A change in the spectrum of the cosmic background radiation in the direction of galaxy clusters, whereby the radiation is less intense at wavelengths longer than 1.4 millimeters and more intense at shorter wavelengths as the result of hot gas in the clusters.
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It's this deficit, known as the Sunyaev-Zel'dovich effect, that Carlstrom and his colleagues have already begun to detect with existing instruments.
An Illuminating Journey by COWEN, RON / Science News
Richard Saunders, Michael Jones, and their colleagues at the University of Cambridge in England used the Ryle telescope, a group of five 13-meter radio dishes in Cambridge, to observe the Sunyaev-Zel'dovich effect in the galaxy cluster Abell 2218.
Dating the cosmos from super stars ... and relic radiation by Science News
 
 
 
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