\begin{table}%t3
\par
\caption{\label{hlimtab}{$H$-band and mass limits obtained from the observations.} 
}
%\centerline
 {
\begin{tabular}{@{} l   c  l  c  c   c @{}}
\hline\hline
Object & $H_{\rm lim} \pm 1\sigma$$^a$ & 
$ZP$$^b$ & 
$SE-2MASS-\rm limits$$^c$ & 
\citet{Curto2007} & 
Mass-limit$^d$  \\
       &  [mag]    &   [mag]    & [mag]  & [mag] & [Jupiter masses]\\
       &                  &         &        &   & \\
\hline
PSR J0108-1431  & $21.42 \pm 0.16$ & 24.66  & $21.5 \pm 1.5$ & $\cdots$ & --\\
RX J0420.0-5022 & $21.84 \pm 0.16$ & 24.61  & $21.5 \pm 0.6$  & 21.7 & $\cdots$\\
Geminga$^e$         & $22.66 \pm 0.14$ & 24.66$^{\rm ep2}$  & $22.0 \pm 0.4$ & $\cdots$ &12\\
RX J0720.4-3125 & $23.07 \pm 0.11$ & 24.63$^{\rm ep2}$  & $22.3  \pm 0.4$ & 22.7 & 15\\
RX J0806.4-4123 & $22.64 \pm 0.16$ & 24.59 & $22.6\pm 0.4$  & 22.9& $\cdots$ \\
RX J1856.6-3754 & $21.54 \pm 0.24$ & 24.65$^{\rm ep2}$ & $22.1 \pm 0.4$  & 21.5 & 11\\
PSR J1932+1059  & $20.31 \pm 0.18$ & 23.49 & $\cdots$  & $\cdots$ & 42\\ 
RBS 1774        & $22.04 \pm 0.16$ & 24.67 &  $21.6 \pm 1.0$ & 22.1& $\cdots$  \\
\hline
\end{tabular}}
\par
\smallskip
$^a$   {$H_{\rm lim}$ indicates the faintest $H$-magnitude with a detection SNR of three measured close to the position of the neutron star;  
 The $1 \sigma$ error is a result of the \stf photometric error, the zeropoint error, and an estimated/assumed error from comparison with 2MASS;}
$^b$  {$ZP$ states the magnitude of the zeropoints, which were obtained in the frame of ESO's calibration plan; $^{\rm ep2}$ indicates that two epochs have been used;}
$^c$   {$SE-2MASS-limits$ lists the {{\it Source Extractor}} limits if using relative 2MASS photometry;}
$^d$  {The mass-limit is according to Sect.~\ref{res1}, $\cdots$ notes that the found objects are interesting for a second epoch observation, -- states the opposite;}
$^e$  {Geminga has been detected in a deeper HST ${\it F160W}$ observation
with roughly 24.1~mag \citep{Shibanov2006}.}
\end{table}