\begin{table}%t1
\caption{Atmospheric parameters, masses, radii and projected rotational 
velocities of the programme stars. Line profiles that cannot be matched at
all by rotational profiles are marked as peculiar (see text).
}
\label{sp}
%\centerline
{\begin{tabular}{cllcccccc} \hline \hline\noalign{\smallskip}
WD & White dwarf & \multicolumn{1}{c}{$T_{\rm eff}$} & $\log g$ &
 $M$ & $R$ & Ref. & $v$~$\sin$ $i$ [\kms]& $v$~$\sin$ $i$ [\kms]\\
{} & {} & \multicolumn{1}{c}{[K]} & [$\frac {\rm cm}{{\rm s}^2}$] &
 [$ M_{\odot}$] & [$  R_{\odot}$]& {} & 1$\sigma$ & 3$\sigma$\\ \hline
\multicolumn{9}{l}{Parameters from spectral analyses:}\\ \hline
0220$+$222 & G 94 - B5B & 15~840 $\pm$ 364 & 7.95 $\pm$ 0.07 & 0.561 & 0.0131 
& 1 & $<$9 & $<$20\\
0251$-$008 & LP 591 - 117 & 7700 $\pm$ 178 & 8.05 $\pm$ 0.07 & 0.624 & 0.0124 
& 8 & $\rm 24^{+4}_{-5}$ & $\rm 24^{+10}_{-12}$ \\
0518$+$333 & G 86 - B1B & {  }9140 $\pm$ 210 & 8.30 $\pm$ 0.07 & 0.767 & 0.0103
& 1 & $<$7 & $<$17\\
0810$+$234 & GD 295 B & 15~220 $\pm$ 360 & 7.99 $\pm$ 0.07 & 0.579 & 0.0127 
& 1 & $<$16 & $<$26\\
0836$+$201 & LB 390 & 16~630 $\pm$ 382 & 8.04 $\pm$ 0.07 & 0.624 & 0.0129
& 7 & $\rm 66^{+14}_{-14}$ & $\rm 66^{+46}_{-59}$\\ 
0913$+$442 & G 116 - 16 & {  }8750 $\pm$ 201 & 8.29 $\pm$ 0.07 & 0.759 & 0.0103 
& 1 & \multicolumn{2}{c}{peculiar} \\
0921$+$354 & G 117 - B15A$^a$ & 12~830 $\pm$ 295 & 7.92 $\pm$ 0.07 & 0.537 &0.0133 
& 1 & $\rm 36^{+7}_{-5}$ & $\rm 36^{+23}_{-17}$ \\
1147$+$255 & LP 375 - 51 & 10~260 $\pm$ 236 & 8.12 $\pm$ 0.07 & 0.651 & 0.0116 
& 1 & $\rm 24^{+7}_{-7}$ & $\rm 24^{+19}_{-15}$\\
1706$+$332 & G 181 - B5B & 13~600 $\pm$ 312 & 7.79 $\pm$ 0.07 & 0.470 & 0.0145 
& 1 & $\rm 23^{+3}_{-4}$ & $\rm 23^{+9}_{-10}$\\
1716$+$020 & Wolf 672 A & 13~620 $\pm$ 313 & 7.79 $\pm$ 0.07 & 0.470 & 0.0145
&  1 & $<$11 & $<$15\\
1743$-$132 & G 154 - B5B & 13~950 $\pm$ 320 & 7.71 $\pm$ 0.07 & 0.431 & 0.0165
& 1 & $\rm 28^{+3}_{-4}$ & $\rm 28^{+8}_{-9}$\\
2047$+$809 & LP 25 - 436 & {  }8840 $\pm$ 203 & 8.50 $\pm$ 0.07 & 0.916 & 0.0087 
& 1 & \multicolumn{2}{c}{peculiar}  \\
2253$-$081 & G 156 - 64 & {  }7160 $\pm$ 165 & 8.43 $\pm$ 0.07 & 0.857 & 0.0093 
& 1 & $\rm 36^{+15}_{-7}$ & $\rm 36^{+27}_{-17}$\\
2258$+$406 & G 216 - B14B & {  }9860 $\pm$ 226 & 8.20 $\pm$ 0.07 & 0.701 & 0.0110
& 1 & $\rm 20^{+6}_{-5}$ & $<$42\\ \hline
\multicolumn{9}{l}{Parameters from photometry and trigonometric parallaxes:}\\ 
\hline
0518$+$333 & G 86 - B1B & {  }7780 $\pm$ 180 & 7.14 $\pm$ 0.24 & 0.24 & 0.022
& 6 & $\rm 10^{+5}_{-9}$ & $<$20  \\
0913$+$442 & G 116 - 16 & {  }8490 $\pm$ 220 & 8.19 $\pm$ 0.17 & 0.71 & 0.011 
& 6 & \multicolumn{2}{c}{peculiar} \\
1147$+$255 & LP 375 - 51 &  {  }9790 $\pm$ 270 & 7.92 $\pm$ 0.23 & 0.55 & 0.013 
& 6 & $\rm 26^{+7}_{-12}$  & $\rm 26^{+19}_{-17}$ \\
1716$+$020 & Wolf 672 A & 13~470 $\pm$ 900 & 7.92 $\pm$ 0.23 & 0.67  & 0.015
& 6 & $<$7 & $<$10 \\
2253$-$081 & G 156 - 64 & {  }6770 $\pm$ 180 & 8.41 $\pm$ 0.19 & 0.86 & 0.010 
& 6 & $\rm 52^{+16}_{-15}$ & $\rm 52^{+29}_{-24}$ \\
\hline
\multicolumn{9}{l}{Parameters from photometry and gravitational redshifts:}\\ 
\hline
0030$+$444 & G 172 - 4 & 10~440 $\pm$ 240 & 8.02 $\pm$ 0.07 & 0.578 & 0.0123
& 3 & $\rm 27^{+5}_{-4}$ & $\rm 27^{+14}_{-12}$\\
% 0251$-$008 & LP 591 - 117 & 14389 $\pm$ 1807 & 8.05 $\pm$ 0.07 & 0.624
% & 0.0124 & 4 & \multicolumn{2}{c}{peculiar}\\
0628$-$020 & LP 600 - 42 & {  }9000 $\pm$ 207 & 7.88 $\pm$ 0.07 & 0.532 & 0.0139
& 2 & \multicolumn{2}{c}{peculiar}\\
0807$+$484 & LP 163 - 121 & {  }7000 $\pm$ 161 & 8.01 $\pm$ 0.07 & 0.596 & 0.0126
& 2 & $<$18 & $<$53\\
0906$+$296 & LP 313 - 16 & 10~000 $\pm$ 230 & 7.86 $\pm$ 0.07 & 0.524 & 0.0141 
& 2 & $\rm 41^{+6}_{-5}$ & $\rm 41^{+15}_{-13}$\\
1240$+$754 & G 255 - B18A & 12~000 $\pm$ 276 & 7.96 $\pm$ 0.07 & 0.553 &0.0129 
& 2 & $\rm 30^{+7}_{-10}$ & $<$62 \\
1510$+$566 & LP 135 - 154 & {  }9280 $\pm$ 213 & 7.98 $\pm$ 0.07 & 0.626 &0.0134 
& 3 & $<$11 & $<$19\\
1710$+$683 & LP 70 - 172 & {  }6825 $\pm$ 90 & 7.94 $\pm$ 0.07 & 0.559 & 0.0133 
& 4 & $\rm 72^{+11}_{-10}$ & $\rm 72^{+27}_{-23}$\\
\hline
1211$+$392 & LP 216 - 74 & 18~800 $\pm$ 1600 & 7.7 $\pm$ 0.22 & {} & {} 
& 5 & $<$18 & $<$53 \\
\hline 
\end{tabular}}
{$^a$} ZZ~Ceti star, the inermost line core is not matched well
(see text and Fig. \ref{wd0921}).\\
{References:\\
{1} - Bergeron et~al.  (\cite{BLF95}); {    }\\
{2} - Reid (\cite{R96}); {    }\\
{3}  -$T_{\rm eff}$ and $\log g$ from Weidemann \& Koester (\cite{WK84}) and masses
from Reid (\cite{R96});{    }\\
{4}   - $T_{\rm eff}$ derived from photometry and
$\log g$ from mass and gravitational redshift (Reid  \cite{R96}); {    }\\
{5}   - Kidder (priv. com.), based on {\it UBV} photometry of Kidder et~al. 
(\cite{KIDD91});}\\ 
%$T_{\rm eff}$ from photometry and $\log g$ = 8 assumed}\\
{6}   - Bergeron et~al. (\cite{BLR01});\\
{7}   - Claver et~al. (\cite{CLBK01});\\
{8}   - $T_{\rm eff}$ derived from the H$_\alpha$ line profile and 
$\log g$ from mass and redshift (Reid  \cite{R96}). {    }\\
\end{table}