\begin{table}%t2
\caption{Maximum signal (in absolute value) obtained for each of the
lines within the considered cosmological model.  
It is shown the angular multipole, the redshift and the observed
frequency (today) at which we have maximum effect. 
We also present the (full) widths~$\Delta \ell$ and~$\Delta \nu_0$ around
the peak value, defined as the regions where the signal is
greater than~$70$\% of the maximum value. 
The last two~columns show the amplitude of the effect in temperature~($\mu {\rm K}$) and the relative value of the temperature to the primordial CMB~power spectrum. All these maximum deviations are negative (i.e. the correction to the power spectrum~$\delta C_\ell$ at those
maxima is negative). }\label{tab:maximos}
%\centering
\par
\begin{tabular}{@{}lccccccc} 
\hline
\hline
Line  & $\ell_{{\rm max}}$ & $\Delta \ell $  & $z_{{\rm max}}$  & $\nu_0$ &
$\Delta \nu_0$ &   
$\sqrt{ \ell (\ell+1)|\delta C_\ell| /2\pi}$ & 
$\sqrt{ |\delta C_\ell|/C_\ell}$ \\
 & & & & [GHz] & [GHz] & [$\mu {\rm K}$] & \\
\hline
H$\alpha$   &           873 &  140&        1010 &           452 & 56 &      
0.28 &    $5.8\times 10^{-3}$ \\  
H$\beta$   &           873 &   140&       1010 &           610 &  76 &      
0.10 &    $2.1\times 10^{-3}$ \\  
H$\gamma$   &           873 &  140&        1010 &           683 & 85 &     
0.06 &    $1.2\times 10^{-3}$ \\  
P$\alpha$   &           888 &  121&        1050 &           152 & 16 &   
$1.6\times 10^{-2}$  &   $3.5\times 10^{-4}$ \\  
P$\beta$   &           888 &   121&       1050 &           223 &  24&   
$5.7\times 10^{-3}$ &   $1.2\times 10^{-4}$ \\  
P$\gamma$   &           888 &  121&        1050 &           261 & 28&    
$3.3\times 10^{-3}$ &   $7.1\times 10^{-5}$ \\  
B$\alpha$   &           891 &  116&        1060 &            70 & 7&    
$8.1\times 10^{-3}$   &   $1.8\times 10^{-4}$ \\  
B$\beta$   &           891 &   116&       1060 &           108 & 11&    
$2.9\times 10^{-3}$ &   $6.4\times 10^{-5}$ \\  
B$\gamma$   &           891 &  116&        1060 &           130 & 13&    
$1.7\times 10^{-3}$ &   $3.6\times 10^{-5}$ \\  
\hline
\end{tabular}
\end{table}