Table 2: Overview of the temperature calibrations for the individual CP groups and photometric systems determined in this study.

CP type		 System Relation Errorsa Restriction Rb # Stars
CP1 ${\it UBV}$ $\theta_{\rm eff} = 0.527 + 0.515(B-V)_{0}$ 0.003/0.013   0.993 24
  ${\it Geneva}$ $\theta_{\rm eff} = 0.632 + 0.640(B2-V1)_{0}$c   $-0.160 \leq (B2-V1)_{0} \leq +0.730$    
    direct use of TXY   (B2-V1)0 < -0.160    
  ${uvby}\beta$ direct use of $T_{{uvby}\beta}$        
CP2 ${\it UBV}$ $\theta_{\rm eff} = 0.541 + 0.389Q$ 0.004/0.014 $T_{\rm eff} \ga 9000$ 0.982 29
    $\theta_{\rm eff} = 0.572 + 1.177(B-V)_{0}$ 0.011/0.089 $-0.20 \leq (B-V)_{0} \leq -0.05$ 0.948 21
    $\theta_{\rm eff} = 0.542 + 0.388(B-V)_{0}$ 0.005/0.030 $-0.05 \leq (B-V)_{0} \leq 0.40$ 0.932 28
  ${\it Geneva}$ $\theta_{\rm eff} = 0.835 + 0.458(B2-G)_{0}$d   $T_{\rm eff} \la 9000$    
    $T_{\rm eff}=1420 + 0.815T_{XY}$ 280/0.023 $T_{\rm eff} \ga 9000$ 0.988 30
  ${uvby}\beta$ direct use of $T_{{uvby}\beta}$   $T_{{uvby}\beta} < 9000 $    
    $T_{\rm eff}=2090+0.756T_{{uvby}\beta}$ 300/0.025 $T_{{uvby}\beta} \geq 9000 $ 0.984 31
    $\theta_{\rm eff}=0.234+0.213[u-b]$ 0.009/0.008 $T_{\rm eff} \ga 9000$ 0.980 33
CP3/4 ${\it Geneva}$ $T_{\rm eff}=1120 + 0.892T_{XY}$ 350/0.021   0.990 37
CP3/4 ${uvby}\beta$ $T_{\rm eff}=2230+0.809T_{{uvby}\beta}$ 300/0.018   0.991 37
CP3a ${\it UBV}$ $\theta_{\rm eff} = 0.501 + 0.323Q$ 0.007/0.026   0.953 18
  ${uvby}\beta$ $\theta_{\rm eff}=0.233+0.196[u-b]$ 0.014/0.014   0.965 17
CP3b/4 ${\it UBV}$ $\theta_{\rm eff} = 0.540 + 0.418Q$ 0.009/0.017   0.980 27
  ${uvby}\beta$ $\theta_{\rm eff}=0.173+0.286[u-b]$ 0.005/0.008   0.989 27
a Errors of the linear fits.
b Correlation Coefficient.
c Taken from Hauck (1985).
d Taken from Hauck & North (1982).

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