\begin{table}%T1
\caption{\label{tab1}Summary of the properties derived from the spectra
of our sample.}
%\centerline
{
\begin{tabular}{lllllll}
\hline\hline
Name & $z$ & Type & $BI$(CIV)$^a$ & $\alpha $$^b$ & $E(B-V)^c$ & $M_{i^*}$$^d$\\
\hline
SDSSJ075618.14+410408.6 & 5.08$^e$ & BAL$^f$ & $270\pm60^g$    & $-$1.67 &  -- & --26.6 \\
SDSSJ103027.10+052455.0 & 6.28 &       &               & $-$1.55 & 0.001&  --28.1 \\
SDSSJ104433.04-012502.2 & 5.78$^h$ & HiBAL & $1950\pm250^g$  & $-$1.55 & 0.001 & --28.4\\
SDSSJ104845.05+463718.3 & 6.22$^i$ & LoBAL & $6500\pm1100^g$ & $-$2.10  &  --$^j$ & --27.4 \\
SDSSJ114816.64+525150.3 & 6.40 &       &               & $-$1.70 &  --  &  --28.5\\
SDSSJ130608.26+035626.3 & 5.99 &       &               & $-$1.80  &  --  &  --27.8\\
SDSSJ160501.21-011220.6 & 4.92 & LoBAL & $9300\pm2000^g$ & $-$1.35 & 0.03 & --27.7\\
SDSSJ173744.88+582829.6 & 4.88$^k$ &       &               & $-$2.10 &  -- &  --26.9\\
\hline
\end{tabular}}
\smallskip
Notes:\\
$^a$ Balnicity index of the CIV absorption as defined in
   Weymann et~al. (\cite{weymann91}), which is "similar''
   to the Equivalent Width
   of the absorption line measured in~km~s$^{-1}$.\\
$^b$ Slope of the continuum ($F_{\lambda}\propto \lambda ^{\alpha }$);
 this is calculated by comparison with the non-BAL SDSS template which
 has $\alpha  = -1.61$ (see text).\\
$^c$ Reddening to apply to the SDSS non-BAL template to match the
 observed spectrum; a SMC extinction curve is assumed (see text).\\
$^d$ Absolute magnitude in the rest frame $i^*$~band, obtained by using
the observed spectral slope and assuming
$H_0 = 50$~km~s$^{-1}$~Mpc$^{-1}$,
$\rm \Omega _m=1$ and $\rm \Omega _{\Lambda}=0$ (to allow for a direct
comparison with Reichard et~al. \cite{reichard03a}); it is not corrected
for intrinsic absorption of the QSOs.\\
$^e$ This is the redshift obtained by our spectrum, while the
redshift reported in the literature is 5.09.\\
$^f$ Possible FeLoBAL (see text).\\
$^g$ All errors on the balnicity indices are dominated by the uncertainty
 on the profile of the CIV~emission.\\
$^h$ This is the redshift obtained by our spectrum, 
while Goodrich et~al. (\cite{goodrich01}) report a redshift of~5.74.\\
$^i$  This is our best estimate of the redshift based on the~MgII (which
is slightly different than the redshiftof 6.23 published by
Fan et~al. \cite{fan03}); however,
the~CIV and~SiIV~emission features may suggest an even lower redshift.\\
$^j$ The extreme UV~continuum of this LoBAL may be fitted with dust
 reddening, but with an extinction curve totally different with respect
 to the SMC one adopted for all other~BAL (see text for details).\\
$^k$ This is the redshift obtained by our spectrum,
  while the redshift reported in the literature is significantly
  different: $z=4.94$.
\end{table}