Table 4: Results of spectral model interpretation1.
  AB Aur SU Aur
  2T model DEM model 2 DEM model 3 3T model DEM model 2
$N_{\rm H}$ [1021 cm-2] = 0.5 4 = 0.5 4 = 0.5 4 3.1 (3.0, 3.3) 3.2 (3.0, 3.4)
N 5 0.45 (0.22, 0.78) 0.57 (0.30, 1.13) 0.58 (0.27, 1.13) - -
O 5 0.20 (0.16, 0.42) 0.22 (0.13, 0.32) 0.27 (0.17, 0.45) 0.50 (0.40, 0.61) 0.30 (0.24, 0.38)
Ne 5 0.60 (0.41, 0.88) 0.62 (0.48, 1.04) 0.77 (0.49, 1.22) 0.61 (0.46, 0.78) 0.38 (0.28, 0.53)
Mg 5 0.21 (0.09, 0.38) 0.28 (0.13, 0.74) 0.34 (0.14, 0.62) 1.51 (1.33, 1.74) 1.17 (1.05, 1.43)
Si 5 0.70 (0.48, 1.01) 0.90 (0.60, 1.32) 0.96 (0.64, 1.51) 0.79 (0.69, 0.92) 0.64 (0.57, 0.79)
S 5 - - - 0.64 (0.49, 0.79) 0.57 (0.45, 0.72)
Fe 5 0.23 (0.17, 0.32) 0.29 (0.22, 0.47) 0.37 (0.24, 0.61) 0.81 (0.73, 0.91) 0.67 (0.61, 0.77)
T1 [MK] 2.45 (2.10, 2.81) - - 7.54 (7.30, 7.75) -
T2 [MK] 6.99 (6.62, 7.41) - - 13.97 (12.05, 18.06) -
T3 [MK] - - - 38.14 (35.68, 41.14) -
EM1 [1052 cm-3] 2.11 (0.87, 3.67) - - 11.27 (9.18, 14.04) -
EM2 [1052 cm-3] 3.44 (3.06, 4.31) - - 7.25 (4.53, 14.35) -
EM3 [1052 cm-3] - - - 30.49 (24.66, 33.21) -
T0 [MK] - 4.38 (2.69, 5.68) 6.33 (5.26, 8.32) - 7.66 (6.95, 8.13)
$\alpha$ - = 2.00 0.47 (0.00, 1.20) - = 2.00
$\beta$ - -1.9 (-2.57, -1.52) -2.05 (-3.00, -1.57) - -0.05 (-0.11, 0.06)
EM [1052 cm-3]6 - 5.21 5.08 - 57.84
$T_{\rm av}$ [MK] 4.69 4.71 4.07 22.65 20.07
$L_{\rm X}$ [1030 erg/s]7 0.40 0.39 0.39 7.40 7.79
$L_{\rm X}$ [1030 erg/s]8 0.55 0.53 0.56 8.53 9.15
$\chi^2_{\rm red}$ 1.06 1.02 1.00 1.20 1.23
d.o.f. 78 79 78 443 446
1 68% error ranges are given in parentheses.
2 Fitted with $\alpha$ held fixed at 2 like in the XEST survey (Güdel et al. 2007).
3 Fitted with $\alpha$ being a free parameter.
4 Held fixed at value found in the XEST survey (Güdel et al. 2007).
5 Element abundances are with respect to solar values given by Anders & Grevesse (1989) (Grevesse & Sauval 1999 for Fe).
6 Total EM integrated over temperature bins between $\log T=6{-}7.9$ [K] (see Güdel et al. 2007 for more details).
7 Determined in the 0.3-10.0 keV band.
8 Determined in the 0.1-10.0 keV band.

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