\begin{table}%T6
\caption{The stellar parameters for the sample sources. The distance
$d$ which we used in the analysis and spectral type (Sp.~T.) are
given. The visual extinction $A_{\rm V}$, the logarithm of the effective
temperature $\log T_{\eff}$, of the stellar luminosity $\log L$, 
of the stellar UV luminosity $\log L_{\uv}$ and of
the observed bolometric luminosity $\log L_{\bol}$ are presented as
well. The latter quantities are estimated based on the photometric
measurements. Furthermore, the ratio of the IR excess luminosity over
the stellar luminosity is computed. Ten of the sample sources have a
ratio larger than unity, hence are not consistent with a passive
reprocessing disk. The last 4 columns contain the IR excess fluxes in
K (2.2 $\mu$m), at 60, 850 and 1300~micron. $^\bigstar$ These
stars are UX Orionis objects according to the definition of
\citet{dullemond03}. $^{\spadesuit}$ Probable confusion with
the nearby source \object{CrA IRS7}. }
 \label{parameters}
%\centering
\par
\begin{tabular}{cccccccccccccccc}
 \hline \hline
 \multicolumn{16}{c}{\bf The stellar parameters of the sample stars}\\ \hline
 \multicolumn{1}{c}{Object} &
 \multicolumn{1}{c}{Region} & 
 \multicolumn{1}{c}{$d$} & 
 \multicolumn{1}{c}{Ref.} &
 \multicolumn{1}{c}{Sp.~T.} &
 \multicolumn{1}{c}{Ref.} &
 \multicolumn{1}{c}{A$_{\rm V}$} &
 \multicolumn{1}{c}{$\log T_{\eff}$} &
 \multicolumn{1}{c}{$\log L$} & 
 \multicolumn{1}{c}{$\log L_{\uv}$} & 
 \multicolumn{1}{c}{$\log L_{\bol}$} &  
 \multicolumn{1}{c}{$L_{\exc}/L$} &
 \multicolumn{1}{c}{$\Delta$K} &
 \multicolumn{1}{c}{$\Delta$60} & 
 \multicolumn{1}{c}{$\Delta$850} & 
 \multicolumn{1}{c}{$\Delta$1300} \\ 
               &            & [pc]  &       &      &      &[mag] &$\log$[K] &$\log [L_{\odot}]$& $\log [L_{\odot}]$& $\log [L_{\odot}]$&   & [mag] & [mag] & [mag] & [mag]   \\
\hline 	 
Group I &  &  &  &  &  &  &  &  &  &  &  &  &  &   & \\
\hline
\object{V376 Cas}       & Cas R1     &  630  &  S89  &  B5e        &  C79 & 4.40   &  4.188 &   1.63  &   1.60   &   2.57  &    9.35 &  5.65 &     16.45 &     15.48   &    14.61    \\
\object{Elias 3-1}      & L1495      &  160  &  K94  &  A6:e       &  Z94 & 4.05   &  3.904 &  -0.14  &$-$0.33   &   1.35  &   35.69 &  5.56 &     14.89 &     15.92   &    15.78    \\
\object{AB Aur}         & L1519      &  140  &  V98  &  A0Ve+sh    &  B93 & 0.50   &  3.979 &   1.68  &   1.56   &   1.70  &    0.51 &  2.28 &     11.33 &     11.08   &    10.67    \\
\object{HD~34282}$^\bigstar$       & &  400  &  P03  &  A3Vne      &  M~00 & 0.28   &  3.941 &   1.27  &   1.11   &   1.37  &    0.53 &  2.05 &     11.68 &     14.04   &     --      \\
\object{HD~34700}       & Orion OB1a &  340  &  D99  &  G0IV+G0IVe &  A03 & 0.00   &  3.774 &   1.31  &   0.91   &   1.42  &    0.27 &  0.08 &     10.21 &     --      &   9.96      \\
\object{HD~97048}       & Ced 111    &  180  &  V98  &  B9.5Ve+sh  &  W87 & 1.26   &  4.000 &   1.64  &   1.53   &   1.41  &    0.35 &  1.23 &     11.52 &     --      &   13.04     \\
\object{HD~100453}      &            &  112  &  HIP  &  A9Ve       &  H75 & 0.02   &  3.869 &   0.90  &   0.66   &   1.09  &    0.57 &  1.27 &     10.71 &     --      &    --       \\
\object{HD~100546}      & Sco OB2-4? &  103  &  V98  &  B9Vne      &  H75 & 0.26   &  4.021 &   1.51  &   1.42   &   1.62  &    0.58 &  1.49 &     11.77 &     --      &    --       \\
\object{HD~135344}      & Sco OB2-3  &  140  &  D99  &  F4Ve       &  D97 & 0.31   &  3.819 &   0.91  &   0.59   &   1.00  &    0.44 &  1.23 &     10.23 &     12.04   &    11.64    \\
\object{HD~139614}      & Sco OB2-3  &  140  &  D99  &  A7Ve       &  D97 & 0.09   &  3.895 &   0.91  &   0.70   &   1.03  &    0.40 &  0.98 &     10.57 &     12.72   &    12.80    \\  
\object{HD~142527}      & Sco OB2-2  &  145  &  D99  &  F7IIIe     &  V98 & 0.64   &  3.796 &   1.18  &   0.82   &   1.34  &    0.82 &  1.28 &     11.08 &     13.47   &    13.18    \\
\object{CD$-$42$^\circ$11721}&       &  400  &  D90  &  B0IVep     &  S90 & 5.08   &  4.470 &   3.94  &   3.92   &   3.02  &    0.13 &  2.83 &     14.87 &     12.19   &    12.07    \\     
\object{HD~169142}      & Sco OB2-1  &  145  &  D99  &  A5Ve       &  D97 & 0.43   &  3.914 &   1.16  &   0.98   &   1.12  &    0.26 &  0.76 &     10.66 &     12.38   &    12.18    \\
\object{T CrA}          & NGC 6729   &  130  &  M81  &  F0e        &  F84 & 2.45   &  3.857 &  -0.18  &$-$0.44   &   0.88  &   12.21 &  3.86 &     14.38 &  $<$13.29   &    14.99    \\
\object{HD~179218}      & L693       &  240  &  V98  &  B9e        &  S66 & 0.54   &  4.021 &   2.00  &   1.90   &   1.88  &    0.28 &  1.27 &     10.53 &      --     &    10.93    \\
\object{BD+40$^\circ$4124}& Cyg R1   &  980  &  S91  &  B2Ve       &  H95 & 3.01   &  4.342 &   3.77  &   3.76   &   2.49  &    0.05 &  2.28 &      --   &     12.72   &    13.34    \\
\object{HD~200775}      & Cep R2     &  440  &  W81  &  B2.5IVe    &  R95 & 1.90   &  4.291 &   3.82  &   3.80   &   2.84  &    0.07 &  1.44 &     12.49 &     9.48    &    8.17     \\
\object{MWC 1080}       & L1238      & 2200  &  L88  &  B0e        &  C79 & 5.27   &  4.477 &   5.26  &   5.24   &   3.75  &    0.03 &  2.98 &     12.41 &     12.60   &    12.44    \\
\hline		
Group II &  &  &  &  &  &  &  &  &  & &  &  &  &   & \\
\hline
\object{VX Cas}$^\bigstar$& Cas R1   &  630  &  S89  &  A1Ve+sh   &  G98  & 0.81   &  3.965 &   1.50  &   1.37   &   1.44  &    0.47 &  1.61 &     10.04 &      --     & $<$11.00    \\
\object{HD~31648}       &  	     &  130  &  V98  &  A3Ve      &  J91  & 0.25   &  3.941 &   1.14  &   0.98   &   1.22  &    0.42 &  1.79 &     9.63  &     12.76   &    12.87    \\
\object{UX Ori}$^\bigstar$ &Orion OB1a& 340  & D99   & A4IVe      &  M~00  & 1.91   &  3.925 &   1.68  &   1.51   &   1.25  &    0.16 &  0.91 &     8.73  &     --      &   10.49     \\
\object{HD~35187}       &   L1559    & 150   & D98   & A2Ve+A7Ve  &  D98  & 0.71   &  3.953 &   1.44  &   1.29   &   1.23  &    0.15 &  0.99 &     8.91  &     10.20   &    9.99     \\
\object{BF Ori}$^\bigstar$ &   Ori OB1c& 510 & D99   & A2IVev     &  M~00  & 0.87   &  3.954 &   1.53  &   1.39   &   1.38  &    0.30 &  1.56 &     9.68  &     --      &   10.51     \\
\object{RR Tau}$^\bigstar$ &   (L1553) & 160 & K94   & A3--5e     &  F84  & 1.04   &  3.927 &   0.31  &   0.14   &   0.42  &    0.96 &  2.73 &     11.06 &      --     & $<$12.15    \\
\object{HD~95881}       &   Sco OB2-4? & 118 & D99   & A2III/IVe  &  H75  & 0.25   &  3.954 &   0.84  &   0.69   &   0.98  &    0.62 &  2.15 &     8.06  &     --      &    --       \\    
\hline
\object{HD~104237}      &   Cha III     & 116   & V98   & A4IVe+sh   &  V98  & 0.29   &  3.925 &   1.54  &   1.36   &   1.53  &    0.23 &  1.18 &     8.54  &     --      &   10.02     \\
\object{HD~141569}      &   (L169)      &  99   & V98   & A0Ve       &  D97  & 0.37   &  3.979 &   1.28  &   1.16   &   1.09  &    0.01 & $-$0.07 &     8.18  &     11.16   &    8.21     \\
\object{HD~142666}$^\bigstar$&   Sco OB2-2 & 145& D99   & A8Ve       &  D97  & 0.93   &  3.880 &   1.13  &   0.91   &   1.03  &    0.33 &  1.21 &     8.96  &     11.54   &    11.51    \\
\object{HD~144432}      &   Sco OB2-2   & 145   & D99   & A9IVev     &  M00  & 0.17   &  3.866 &   1.01  &   0.76   &   1.13  &    0.45 &  1.40 &     8.89  &     10.41   &    10.37    \\
\object{HR 5999}$^\bigstar$&   Lupus 3  & 210   & V98 & A5--7III/IVe+sh& T89 & 0.49   &  3.899 &   1.94  &   1.74   &   1.97  &    0.46 &  1.63 &     7.98  &     9.08    &  $<$9.19    \\
\object{Wra 15-1484}    &               & 750   & L89   & B0:[e]      & D98b & 3.07   &  4.477 &   2.99  &   2.97   &   2.45  &    0.31 &  4.45 &     13.60 &      --     &     --      \\
\object{HD~150193}      &    Sco OB2-2  & 150   & V98   & A1--3Ve     & G98  & 1.49   &  3.953 &   1.38  &   1.23   &   1.19  &    0.45 &  1.82 &     8.98  &     10.57   &    10.43    \\
\object{AK Sco}$^\bigstar$ &   	        & 150   & V98   & F5+F5IVe    & A89  & 0.62   &  3.809 &   0.95  &   0.62   &   0.88  &    0.21 &  0.64 &     8.69  &     10.07   &     --      \\
\object{HD~163296}      &   	        & 122   & V98   & A3Ve        & G98  & 0.09   &  3.941 &   1.38  &   1.22   &   1.51  &    0.46 &  1.92 &     9.98  &     13.00   &    12.97    \\
\object{VV Ser}$^\bigstar$&    Serpens  & 330   & D91   & A2IIIe      &  V   & 2.67   &  3.954 &   1.27  &   1.13   &   1.36  &    1.37 &  3.13 &     10.08 &      --     & $<$11.39    \\
\object{R CrA}$^\bigstar$&    NGC 6729  & 130   & M81   & A1--F7ev    & V98  & 1.33   &  3.857 &  $-$0.19  &$-$0.45   &   3.45  & 4675.32$^{\spadesuit}$ &  6.56 &  $<$17.10 &  $<$15.68   & $<$14.89    \\
\object{WW Vul}$^\bigstar$ &    Vul R1  & 440   & V81   & A4IV/Ve+sh  & G98  & 1.18   &  3.979 &   1.44  &   1.31   &   1.29  &    0.50 &  2.19 &     9.71  &      --     &    11.28    \\
\object{LkH$\alpha$ 224}$^\bigstar$&Cyg R1& 980 & S91   & A7e         & V99  & 2.98   &  3.895 &   2.06  &   1.85   &   2.31  &    1.97 &  3.15 &      --   &  $<$14.06   &     --      \\
\object{BD+46$^\circ$3471}&  IC 5146    &1200   & H02   & A0.5IIIe    & G98  & 1.27   &  3.991 &   2.60  &   2.49   &   2.43  &    0.50 &  2.47 &     9.44  &      --     & $<$11.17    \\
\object{SV Cep}$^\bigstar$  &    Cep R2 & 440   & W81   & A0--2Ve     & G98  & 0.68   &  3.965 &   1.15  &   1.01   &   1.39  &    1.29 &  2.49 &     10.95 &      --     &    11.41    \\
\hline		  						  	                                                                                 
Group III &  &  &  &  &  &  & &  &  &  &  &  &  &   & \\
\hline
\object{Z CMa}          &    CMa R1    &  1050  &  S99   & Be        &  V98  & 4.46   &  4.477 &   5.15  &   5.12   &   3.71  &    0.05 &  2.57 &     11.88 &     11.98   &    11.85    \\
\object{IRAS12496-7650} &    Cha II    &   180  &  W97   & Ae        &  H91  &14.00   &  3.927 &   2.52  &   2.35   &   1.60  &    0.14 &  0.51 &      9.16 &      --     &    10.71    \\
\object{MWC 297}        &    (L515)    &   250  &  D97c  & B1.5Ve    &  D97c & 7.73   &  4.375 &   4.01  &   4.00   &   2.69  &    0.07 &  2.61 &     12.11 &     10.31   &    10.76    \\
\object{LkH$\alpha$ 225}&    Cyg R1    &   980  &  S91   & A--Fe     &  H95  & 7.32   &  3.857 &   2.62  &   2.36   &   3.25  &    4.64 &  2.05 &     13.41 &     14.19   &    13.79    \\
\object{PV Cep}         &    Cep R2    &   440  &  W81   & A5:e      &  C81  & 7.01   &  3.914 &   0.94  &   0.75   &   1.91  &   11.29 &  4.33 &     14.24 &     15.98   &    15.81    \\
\object{V645 Cyg}       &    Cyg OB7   &  3500  &  G86   & O7e       &  V02  & 4.15   &  4.580 &   4.54  &   4.41   &   4.60  &    1.25 &  6.23 &     16.99 &     17.53   &    17.26    \\
 \hline
 \end{tabular}		  
 \begin{tabular}{cccccc}
  \hline\hline
 \multicolumn{6}{c}{References} \\ \hline
 \multicolumn{1}{c}{Ref.} &
 \multicolumn{1}{c}{Article} &
 \multicolumn{1}{c}{Ref.} &
 \multicolumn{1}{c}{Article} &
 \multicolumn{1}{c}{Ref.} &
 \multicolumn{1}{c}{Article} \\
   \hline 
A89   & \citet{andersen}                &G98   & \citet{gray}                    &  S89   & \citet{shevchenko89a,shevchenko89b} \\     
A03   & \citet{arellanoferro}           &G99   & \citet{gurtler}                 &  S90   & \citet{shore} \\              
B93   & \citet{bohm93}     	        &H02   & \citet{herbig02}                &  S91   & \citet{shevchenko91} \\         
C79   & \citet{cohen79}     		&H75   & \citet{houk}                    &  S99   & \citet{shevchenko99} \\         
C81   & \citet{cohen81} 		&H91   & \citet{hughes}                  &  T89   & \citet{tjinadjie89} \\        
D90   & \citet{dewinter}        	&H95   & \citet{hillenbrand95}           &  V02   & \citet{valtts} \\        
D91   & \citet{delara}   	        &J91   & \citet{jaschek}                 &  V81   & \citet{voshchinnikov} \\             
D97   & \citet{dunkin97a} 		&K94   & \citet{kenyon}                  &  V98   & \citet{vandenancker98} \\     
D97c  & \citet{drew}    		&L88   & \citet{levreault88}               &  V99   & \citet{vandenancker99} \\     
D98   & \citet{dunkin98}        	&L89   & \citet{lebertre}                &   V    & van den Ancker (unpublished) \\    
D98b  & \citet{dewinter98}      	&M81   & \citet{marraco}                 &  W81   & \citet{whitcomb} \\           
D99   & \citet{dezeeuw}         	&M00   & \citet{merin}                   &  W87   & \citet{whittet87} \\            
F84   & \citet{finkenzeller84}   	&P03   & \citet{pietu}                   &  W97   & \citet{whittet97} \\            
F85   & \citet{finkenzeller85} 		&R95   & \citet{rogers}                  &  Z94   & \citet{zinnecker} \\    
G86   & \citet{goodrich} 		&S66   & \citet{slettebak}               &  HIP   & Hipparcos  \\
  \hline 
\end{tabular}		    
\end{table}