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Sunyaev-zeldovich Effect




The Sunyaev-Zel'dovich effect can be divided into:


Sunyaev and Zel'dovich predicted the effect, and conducted research in 1969 , 1972 , and 1980 . The Sunyaev-Zel'dovich effect is of major Astrophysical and Cosmological interest. It can help determine the value of the Hubble Constant . To distinguish the SZ effect due to galaxy clusters from ordinary density perturbations, both the Spectral dependence and the spatial dependence of fluctuations in the Cosmic Microwave Background are used. Analysis of CMB data at higher angular resolution (high L values) requires taking into account the Sunyaev-Zel'dovich effect.

Current research is focused on modelling how the effect is generated by the intra-cluster plasma in : it changes little between redshifts of 0.3 and 2, meaning that clusters between these redshifts have similar sizes on the sky.


Measurements of the SZ effect




See also




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