Table 5: Best-fit spectral parameters for XZ Tau during three consecutive time intervals of XMM-Newton observation.
Time interval $N({\rm H})$ kT₁ kT₂ $E\!M_1$ $E\!M_2$ Z $\chi^2$ P

ks $10^{22}~{\rm cm^{-2}}$ keV keV 10⁵³ cm^-3 10⁵³ cm^-3 $Z_\odot$

0-20 $1.06\pm 0.06$ $0.14\pm 0.08$ $2.29\pm 0.30$ $1665\pm 1297$ $1.25\pm 0.36$ $0.057\pm 0.035$ 1.43 0.02

20-40 $0.49\pm 0.11$ $0.29\pm 0.07$ $4.27\pm 0.78$ $36.7\pm 44.3$ $1.97\pm 0.57$ $0.0077\pm 0.0076$ 1.00 0.49

40-54 $0.26\pm 0.02$ $1.00\pm 0.08$ $4.98\pm 2.15$ $2.12\pm 2.89$ $1.85\pm 1.13$ $0.083\pm 0.066$ 0.94 0.64

**Table 5:** Best-fit spectral parameters for XZ Tau during three consecutive time intervals of XMM-*Newton* observation.
Time interval	$N({\rm H})$	kT₁	kT₂	$E\!M_1$	$E\!M_2$	Z	$\chi^2$	P
ks	$10^{22}~{\rm cm^{-2}}$	keV	keV	10⁵³ cm^-3	10⁵³ cm^-3	$Z_\odot$
0-20	$1.06\pm 0.06$	$0.14\pm 0.08$	$2.29\pm 0.30$	$1665\pm 1297$	$1.25\pm 0.36$	$0.057\pm 0.035$	1.43	0.02
20-40	$0.49\pm 0.11$	$0.29\pm 0.07$	$4.27\pm 0.78$	$36.7\pm 44.3$	$1.97\pm 0.57$	$0.0077\pm 0.0076$	1.00	0.49
40-54	$0.26\pm 0.02$	$1.00\pm 0.08$	$4.98\pm 2.15$	$2.12\pm 2.89$	$1.85\pm 1.13$	$0.083\pm 0.066$	0.94	0.64

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