Table 6: Asymmetric drift $V_{\rm lag}$ and standard deviation of U, V, W for the 27 SPY thick-disk white dwarfs, $V_{\rm lag}$, $\sigma _{U}$, $\sigma _{V}$, and $\sigma _{W}$from Soubiran et al. (2003), and Chiba & Beers (2000) are shown for comparison.
  $V_{\rm lag}$ $\sigma _{U}$ $\sigma _{V}$ $\sigma _{W}$
  ${\rm km~s^{-1}}$ ${\rm km~s^{-1}}$ ${\rm km~s^{-1}}$ ${\rm km~s^{-1}}$
Thick-disk WDs        
(our sample) -51 79 36 46
Thick-disk stars        
(Soubiran et al.) -51 63 39 39
Thick-disk stars        
(Chiba & Beers) -20 46 50 35


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