Table 1: Data for the three Taurus low mass members.
  KPNO-Tau
  #3 #5 #8
Ic 15.77 15.08 15.10
J $13.323\pm0.022$ $12.640\pm0.024$ $12.946\pm0.022$
H $12.501\pm0.022$ $11.918\pm0.024$ $12.367\pm0.021$
Ks $12.079\pm0.021$ $11.536\pm0.018$ $11.985\pm0.022$
Sp. type M 6 (M 6) M 7 (M 7.5) M 6 (M 5.75)
Width H$\alpha $ (km s-1) 310 125 2401
W(H$\alpha $) (Å) $81.4\pm5.7$ (130) $21.1\pm0.9$ (30) $12.0\pm1.0$ (17.5)
W(HeI 6678) (Å) 3.5: (6.5) 0.2: 0.2:
W(Li) (Å) 0.60 (Yes) 0.48 0.78
log Lum(bol)/$L_\odot$ -1.66/-1.762 -1.70/-1.662 -1.65/-1.762
Mass ($M_\odot$) 0.073 0.06 0.073
log L(H$\alpha $)/L(bol) -2.87 -3.70 -3.70
$T_{\rm eff}$ (Luhman 1999) 2990 2890 2990
Values in parenthesis are from low resolution spectroscopy by Briceño et al. (2002).
A double colon implies a large uncertainty in the measurement.
1 180 km s-1 without the asymmetry.
2 From Ic and Ks, respectively.
3 0.08 $M_\odot$ from the HR diagram. The listed values are from Ic and Baraffe et al. (1998)

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