Table 5: Results from the spectral fits using the 2T/3T model1.
Parameters HD 283572 V 773 Tau V 410 Tau HP Tau/G2  
$N_{\rm H}$ [1022 cm-2] = 0.08 2 = 0.17 2 = 0.02 2 = 0.41 2  
T1 [MK] 2.19 (1.33, 3.09) 4.51 (4.01, 5.77) 6.40 (3.96, 11.28) 8.86 (8.43, 9.19)  
T2 [MK] 8.60 (8.33, 9.08) 9.15 (8.42, 10.93) 9.77 (5.64, 14.17) 25.72 (23.42, 28.37)  
T3 [MK] 26.03 (24.96, 27.12) 29.39 (27.49, 32.46) 24.78 (22.71, 26.69) -  
EM1 [1052 cm-3] 18.77 (4.50, 47.13) 8.01 (4.29, 16.85) 8.61 (4.31, 17.16) 28.88 (20.95, 41.70)  
EM2 [1052 cm-3] 30.33 (26.00, 35.88) 20.28 (15.56, 22.43) 11.25 (6.06, 18.78) 35.41 (31.62, 40.19)  
EM3 [1052 cm-3] 65.79 (62.50, 69.00) 37.88 (34.30, 40.89) 23.32 (20.61, 26.61) -  

3
0.27 (0.19, 0.46) 0.61 (0.47, 0.79) 0.45 (0.37, 0.55) 0.51 (0.20, 0.89)  
Ne 3 0.91 (0.72, 1.12) 1.60 (1.29, 2.01) 1.10 (0.91, 1.35) 1.10 (0.70, 1.56)  
Mg 3 0.80 (0.65, 0.97) 0.57 (0.42, 0.78) 0.27 (0.15, 0.39) 0.82 (0.56, 1.09)  
Si 3 0.34 (0.25, 0.44) 0.30 (0.19, 0.42) 0.09 (0.00, 0.18) 0.29 (0.17, 0.42)  
3 0.22 (0.10, 0.35) 0.57 (0.37, 0.78) 0.48 (0.30, 0.66) 0.27 (0.09, 0.46)  
Fe 3 0.59 (0.49, 0.68) 0.37 (0.27, 0.49) 0.18 (0.14, 0.23) 0.72 (0.49, 0.97)  
$T_{\rm av}$ [MK] 12.96 16.38 14.84 15.94  

$L_{\rm X}$ [1030 erg/s]4
13.56 8.75 4.60 9.26  

$\chi^2_{\rm red}$
0.91 0.95 1.15 0.94  
d.o.f. 248 205 170 130  
Parameters SU Aur DH Tau BP Tau DN Tau AB Aur
$N_{\rm H}$ [1022 cm-2] 0.31 (0.30, 0.33) = 0.20 2 = 0.06 2 =0.07 2 =0.05 2
T1 [MK] 7.54 (7.30, 7.75) 4.66 (3.84, 6.08) 2.97 (2.69, 3.24) 6.30 (5.36, 6.77) 2.45 (2.10, 2.81)
T2 [MK] 13.97 (12.05, 18.06) 11.28 (10.27, 12.32) 9.42 (8.40, 10.83) 26.09 (21.35, 31.66) 6.99 (6.62, 7.41)
T3 [MK] 38.14 (35.68, 41.14) 24.55 (21.36, 27.69) 23.59 (21.58, 25.88) - -
EM1 [1052 cm-3] 11.27 (9.18, 14.04) 10.85 (6.05, 16.97) 2.18 (1.41, 3.28) 4.57 (2.77, 9.50) 2.11 (0.87, 3.67)
EM2 [1052 cm-3] 7.25 (4.53, 14.35) 37.93 (24.16, 45.46) 2.84 (1.99, 4.05) 6.41 (5.28, 7.97) 3.44 (3.06, 4.31)
EM3 [1052 cm-3] 30.49 (24.66, 33.21) 34.79 (25.10, 46.39) 6.17 (5.36, 7.05) - -

3
- - - - 0.45 (0.22, 0.78)
3 0.50 (0.40, 0.61) 0.47 (0.32, 0.55) 0.30 (0.23, 0.42) 0.27 (0.10, 0.41) 0.20 (0.16, 0.42)
Ne 3 0.61 (0.46, 0.78) 0.69 (0.51, 0.88) 1.18 (0.83, 1.58) 1.01 (0.44, 1.45) 0.60 (0.41, 0.88)
Mg 3 1.51 (1.33, 1.74) 0.29 (0.15, 0.44) 0.64 (0.42, 0.91) 0.77 (0.39, 1.37) 0.21 (0.09, 0.38)
Si 3 0.79 (0.69, 0.92) 0.13 (0.05, 0.23) 0.30 (0.16, 0.45) 0.41 (0.15, 0.79) 0.70 (0.48, 1.01)
3 0.64 (0.49, 0.79) 0.44 (0.28, 0.62) 0.48 (0.27, 0.72) 0.00 (0.00, 0.31) -
Fe 3 0.81 (0.73, 0.91) 0.17 (0.11, 0.23) 0.27 (0.19, 0.35) 0.21 (0.07, 0.37) 0.23 (0.17, 0.32)
$T_{\rm av}$ [MK] 22.65 13.90 12.48 14.44 4.69

$L_{\rm X}$ [1030 erg/s]4
7.40 8.35 1.20 1.19 0.40

$\chi^2_{\rm red}$
1.20 1.00 1.26 0.99 1.06
d.o.f. 443 139 158 44 78
1 68% error ranges are given in parentheses.
2 Held fixed at values found in the XEST survey (Güdel et al. 2007a).
3 Element abundances are with respect to solar values given by Anders & Grevesse (1989) (Grevesse & Sauval 1999 for Fe).
4 Determined in the 0.3-10.0 keV band.

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