\begin{table}%t7 \caption{\label{bd}Candidate brown dwarfs in $\rho$~Ophiuchus known to date.} \par %\centering \par \begin{tabular}{l r c c c c} \hline \hline \noalign{\smallskip} Name & \emph{J}\tablefootmark{a} & A$_{\emph{V}}$ &Sp. Type & $T_{{\rm eff}}$\tablefootmark{b} & Ref.\tablefootmark{c} \\ ~ & ~(mag) & (mag) & ~ & (\emph{K}) & ~ \\ \hline \noalign{\smallskip} CFHTWIR-Oph~4 & 14.88 & 2.5 & M6.50 & $\rm 2935^{+55}_{-55}$ & this work \\ CFHTWIR-Oph~34 & 15.97 & 9.70 & M8.25 & $\rm 2710^{+550}_{-170}$ & this work \\ CFHTWIR-Oph~47 & 15.94 & 5.6 & M7.50 & $\rm 2795^{+85}_{-85}$ & this work \\ CFHTWIR-Oph~57 & 15.06 & 6.10 & M7.25 & $\rm 2880^{+170}_{-245}$ & this work \\ CFHTWIR-Oph~96~ & 14.60 & 1.10 & M8.25 & $\rm 2710^{+310}_{-170}$ & this work \\ CFHTWIR-Oph~106~ & 15.36 & 4.9 & M6.50 & $\rm 2935^{+225}_{-122}$ & this work \\ CRBR~14 & 14.79 & 10.0 & M7.5(M5.5, M7) & 2795 & 2, 3, 5 \\ CRBR~31 & 16.28 & 8.6 & M6.7 & 2935 & 4 \\ GY~3 & 12.27 & 0.0 & M8(M7.5) & 2710 & 6, 5 \\ GY~5 & 12.44 & 2.8 & M7(M6) & 2880 & 2, 5 \\ GY~10 & 15.52 & 14.0 & M8.5(M6.5) & 2555 & 2, 3 \\ GY~11 & 16.17 & 4.8 & M6.5(M8.5) & 2935 & 2, 5 \\ GY~64 & 16.35 & 11.0 & M8 & 2710 & 2 \\ GY~141 & 15.05 & 0.7 & M8.5(M8) & 2555 & 1, 4 \\ GY~202 & 16.79 & 13.0 & M7(M6.5) & 2880 & 2, 3 \\ GY~204 & 12.47 & 0.5 & M6 & 2990 & 5 \\ GY~264 & 12.78 & 0.0 & M8 & 2710 & 6 \\ GY~310 & 13.23 & 5.7 & M8.5(M7, M6) & 2555 & 2, 3, 5 \\ GY~350 & 13.74 & 7.0 & M6 & 2990 & 5 \\ oph-160 & 14.05 & 6.0 & M6 & 2990 & 5 \\ oph-193 & 13.61\tablefootmark{d} & 7.5 & M6 & 2990 & 5 \\ \hline \end{tabular} \tablefoot {\tablefoottext{a}{PSF photometry magnitude from WIRCam/CFHT survey, unless noted otherwise;} \tablefoottext{b}{from the ${\rm SpT} - T_{{\rm eff}}$ relation of \citet{Luhman2003};} \tablefoottext{c}{spectral types determined from the following studies: 1.~\citet{Luhman1997}; 2.~\citet{Wilking1999}; 3.~\citet{Luhman1999}; 4.~\citet{Cushing2000}; 5.~\citet{Natta2002}; 6.~\citet{Wilking2005};} \tablefoottext{d}{this object is not part of the WIRCam surveyed region. Photometry is from 2MASS public catalogue.}} \end{table}