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$\begin{figure} \par\includegraphics[width=7.8cm,clip]{Ha201_f1.ps} \end{figure}$ Figure 1: We show the geometry of the cavities in the cluster MS0735.6+7421 which has been used to evaluate the SZE. The X-ray image of the cluster MS0735.6+7421 has been taken from http://chandra.harvard.edu/photo/2005/ms0735 (credit NASA/CXC/Ohio U./B.McNamara). The two cavities have a radius $\approx$ 100 kpc and are located at a distance of $\approx$ 125 kpc and $\approx$ 170 kpc from the central radio galaxy (whose position is indicated by a cross) along the axis represented in the picture.
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In the text

$\begin{figure} \par\includegraphics[width=7.8cm,clip]{Ha201_f2.ps} \end{figure}$ Figure 2: The spectrum of the overall SZE from the cluster MS0735.6+7421 has been computed at a projected radius of $\approx$ 125 kpc from the cluster center where the los passes through the center of cavity A. We report the thermal SZE (blue), the non-thermal SZE from the cavity (black) and the total SZE (red). The plotted curves are for different values of the lowest electron momentum: p₁= 200 (dot-dashes), p₁=20 (dashes), p₁=10 (dots) and p₁=2 (solid). The non-thermal SZE is normalized to the cavity pressure $P=6 \times 10^{-11}$ erg cm^-3 and, in this respect it must be considered as a lower limit of the true SZE produced in the cavity.
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In the text

$\begin{figure} \par\includegraphics[width=7.8cm,clip]{Ha201_f3.ps} \end{figure}$ Figure 3: The spatial distribution of the SZE from the cluster has been computed at a frequency x=3.87 where the thermal SZE from the cluster MS0735.6+7421 is null. At such a frequency, the only visible SZE is that emerging from the two cavities A and B of the cluster MS0735.6+7421. A possible kinematic SZE could provide a bias of $\Delta I / I_0 \approx (1.46 \times 10^{-6}) (\pm v_{\rm p}/100~{\rm km~s}^{-1})$ .
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In the text