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Fig. 3


Standard SZE (in units of brightness temperature relative to the CMB) for a thermal plasma (kT = 5 keV and τ = 5 × 10-3; solid line) and for a non-thermal plasma (s = 3.5, p1 = 10 and τ = 1 × 10-4; dashed line). The SZE is shown in the radio frequency range where the 21-cm radiation background are visible.

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