\begin{table}%t2
\small
\caption{IRAM/MAMBO aperture photometry at $\lambda =1.2$~mm.}\label{tab2}
%\centerline
{\begin{tabular}{llcccccccccccc} 
\hline\hline\noalign{\smallskip}
 Star & Sp. &  RA$^a$  &   Dec$^a$  &  Dist.   & { Log~($L_{x}$)$^b$} & { Moving }  & {Integr.}  & $\theta$ &  Mean brightness$^c$  & Map  noise  rms  & $F_{\theta}^d$     & Dust &  Dust   \\
 & type &  (J2000) &  (J2000)     &  (pc) & { Log~(erg/s)} & {  group }  &     time       &   ($''$)  & (mJy/11$''$ beam)   & (mJy/11$''$ beam) & $(3\sigma)$   & temp.$^e$   &    mass$^f$  \\
 &   &  &   &  & & &     (h)      &  &  &  &  (mJy) & (K) &   (moon)  \\
\hline
GJ~65A     &   M5.5     & {01 39 02.6}  & {--17 56 59} &   2.6    &     27.59     & {Hyades}    & 1.1    &  46    & --$0.30  \pm 0.5$  &  2.1       & 26  & 15     &   $<$0.9     \\
GJ~109     &   M3       & {02 44 15.8}  & {25 31 22}  &   7.6    &     27.30     & {Hyades }   & 1.3    &  16    &  $0.67  \pm 1.4$  &  2.1       &  9  & 21     &   $<$1.6     \\
HIP~16563B$^{g}$ &   M0       & {03 33 14.0}  & {46 15 19}  &  33.8    &     n/a       & {AB Dor}    & 0.9    &   4    &  $0.35  \pm 1.0^h$ &   --  &  3  & 27     &   $<$8.0  \\
HIP~17695  &   M3       & {03 47 23.4}  & {--01 58 21} &  16.3    &     n/a       & {AB Dor}    & 0.5    &   5    & --$0.79  \pm 2.2$  &  2.2       &  7  &  20     &   $<$5.6      \\
GJ~3379    &   M4       & {06 00 04.5}  & {02 42 23}  &   5.4    &     n/a       & {Hyades}    & 0.5    &  22    & --$0.06  \pm 1.1$  &  2.3       & 14  &  18     &   $<$1.5      \\
GJ~234A    &   M4       & {06 29 23.6}  & {--02 48 53} &   4.1    &     n/a       & {Loc Ass}   & 1.1    &  29    &  $0.76  \pm 0.7$  &  1.8       & 14  &  18     &   $<$0.9       \\
GJ~285     &   M4.5     & {07 44 40.0}  & {03 33 06}  &   5.9    &     28.62     & {Loc Ass }  & 1.1    &  20    & --$0.13  \pm 1.0$  &  1.7       &  9  &  17     &   $<$1.1       \\
GJ~1111    &   M6.5     & {08 29 49.1}  & {26 46 29}  &   3.6    &     n/a       & {Castor }   & 0.5    &  33    & --$0.34  \pm 0.8$  &  2.4       & 22  &  12     &   $<$1.9       \\
GJ~393     &   M2       & {10 28 55.3}  & {00 50 24}  &   7.2    &     26.84     & {Loc Ass }  & 1.7    &  18    & --$0.38  \pm 1.1$  &  1.5       &  7  &  24     &   $<$0.8       \\
GJ~402     &   M4       & {10 50 51.8}  & {06 48 25}  &  6.8$^i$ &     n/a       & {Loc Ass}   & 1.1    &  18    & --$0.24  \pm 1.0$  &  1.7       &  8  &  18     &   $<$1.0      \\
GJ~447     &   M4       & {11 47 44.5}  & {00 48 10}  &   3.3    &     26.84     & {Ursa Ma }  & 1.1    &  36    &  $0.28  \pm 0.4$  &  1.4       & 14  &  18     &   $<$0.6       \\
GJ~408     &   M2.5     & {11 00 04.1}  & {22 49 57}  &    6.6   &    26.60      & {Castor }   & 1.1    &  18    &  $0.16  \pm 1.0$  &  1.7       &  8  &  22     &   $<$1.0       \\
GJ~569A    &   M2       & {14 54 29.3}  & {16 06 03}  &   9.8    &    28.54      & {Ursa Ma }  & 1.1    &  12    &  $1.76  \pm 2.2$  &  2.2       &  7  &  24     &   $<$1.8     \\
GJ~628     &   M3.5     & {16 30 18.0}  & {--12 39 51} &   4.3    &    26.48      & {Loc Ass}   & 20.0   &  28    &  $0.1   \pm 0.2$  &  0.4       &  3  &  12     &   $<$0.4      \\
GJ~625     &   M1.5     & {16 25 24.8}  & {54 18 13}  &   6.6    &    26.70      & {Ursa Ma }  & 0.5    &  18    & --$0.85  \pm 1.5$  &  2.5       & 12  &  26     &   $<$1.3    \\
HIP~81084  &   M0.5     & {16 33 41.5}  & {--09 33 12} &   31.9   &    n/a        & {AB Dor }   & 0.5    &   4    &   $0.63 \pm 2.6$  &  2.6       &  8  &  27     &   $<$19      \\
HIP~86346  &   M0       & {17 38 39.6}  & {61 14 16}  &   24.5   &    n/a        & {AB Dor}    & 0.5    &   5    & --$0.13  \pm 2.1$  &  2.1       &  6  &  27     &   $<$8.2     \\
GJ~791.2   &   M4.5     & {20 29 48.6}  & {09 41 19}  &   8.9    &    27.89      & {Hyades}    & 1.1    &  14    &  --$0.98 \pm 1.7$  &  1.7       &  6  &  17     &   $<$2.0     \\
GJ~849     &   M3.5     & {22 09 40.7}  & {--04 38 26} &   8.8    &    n/a        & {Hyades}    & 0.5    &  14    &  --$1.32 \pm 2.7$  &  2.7       & 10  &  19     &   $<$2.7      \\
GJ~876     &   M4       & {22 53 17.0}  & {--14 15 52} &   4.7    &    n/a        & {Loc Ass}   & 0.5    &  25    &  --$0.07 \pm 1.5$  &  2.8       & 19  &  18     &   $<$1.6     \\
GJ~873     &   M3.5     & {22 46 49.3}  & {44 19 59}  &   5.0    &    29.09      & {Ursa Ma }  & 0.6    &  24    &  $0.32  \pm 1.1$  &  2.0       & 13  &  19     &   $<$1.1      \\
GJ~4247    &   M4       & {22 01 13.2}  & {28 18 25}  &   9.0    &    n/a        & {Castor }   & 1.1    &  13    &  --$0.18 \pm 1.4$  &  1.4       &  5  &  18     &   $<$1.5    \\
GJ~856A    &   M3       & {22 23 29.1}  & {32 27 32}  &   16.1   &    29.46      & {AB Dor }   & 1.1    &   8    &  --$0.56 \pm 1.5$  &  1.5       &  4  &  21     &   $<$3.3   \\
GJ~9809    &   M0       & {23 06 04.8}  & {63 55 34}  &  24.9    &    29.43      & {Loc Ass }  & 0.5    &   7    &  $0.36  \pm 2.2$  &  2.2       &  7  &  26     &   $<$10  \\ 
\hline
\end{tabular}}
\smallskip
 $^a$ Observed positions,  i.e. coordinates updated with the Hipparcos proper motions at the mean observation date of July 2005.\\
 $^b$ ROSAT All Sky Survey of Nearby Stars: Huensch et~al. 1999.\\ 
 $^c$ Mean brightness  computed  over the effective area of angular size $\theta('')$ corresponding to the canonical disk 120~AU in diameter.\\ 
 $^d$ Total flux density $F_{\theta}$ is the $3\sigma$ map noise integrated over this canonical disk. \\ 
 $^e$ Dust temperature computed  at 60~AU from the central star.\\
 $^f$ Dust mass upper limits based on  $F_{\theta}$. \\
 $^g$ Designation and spectral type from Zuckerman \& Inseok Song (\cite{Zuckermane2004}b) and L\'opez-Santiago et~al. (\cite{L\'opez-Santiago2006}).\\
 $^h$ On-off single bolometer MAMBO standard photometry. \\
 $^i$ Based on parallax from the Research Consortium on Nearby Stars RECONS project ({\tt www.chara.gsu.edu/RECONS}). 
\end{table}