Beyond the Standard Lore of the SZ effect

Abstract

Multi-frequency (X-ray, optical and radio) observations of galaxy clusters indicate that the atmospheres of these cosmic structures consist of a complex structure of thermal (hot and warm) and non-thermal (with different origin and spectra) distribution of electrons (and protons) which is, therefore, far from its modelling as a single, thermal electronic gas. This evidence requires to go beyond the simple, standard lore of the SZ effect. This task is challenging for both the theoretical aspects of their modelling and for the experimental goals to be achieved, but it will return a large amount of physical information by using the SZ effect as a unique tool for astro-particle and cosmology.

22 pages, 7 figures. To appear in the Proceedings of the Francesco Melchiorri Memorial Conference, Rome (Italy) April 12-14, 2006 (J.New.Astron.Rev. in press)

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Cited by in corpus (9)

• Warming rays in cluster cool cores
• SZ effect from radio-galaxy lobes: astrophysical and cosmological relevance
• On the ICS interpretation of the Hard X-Ray Excesses in Galaxy Clusters: the case of Ophiuchus
• Multi-wavelength mock observations of the WHIM in a simulated galaxy cluster
• An analysis of electron distributions in galaxy clusters by means of the flux ratio of iron lines FeXXV and XXVI
• On the ability of spectroscopic SZ effect measurements to determine the temperature structure of galaxy clusters
• Studying the leptonic structure of galaxy cluster atmospheres from the spectral properties of the SZ effect
• Relativistic inverse Compton scattering of photons from the early universe
• The imprints of galaxy cluster internal dynamics on the Sunyaev-Zeldovich effect