Table 3: Summary of the parameters derived for the XEST sources in quiescence and during flares.
XEST ID Optical ID $T_{\rm q}^{~a}$ $L_{\rm Xq}^{~a}$ $T_{\rm peak}^{~b}$ $L_{\rm Xpeak}^{~b}$ $\tau_{\rm rise}^{~c}$ $\tau_{\rm dec}^{~c}$ L $L/R_\star$
    (MK) (1030 erg s-1) (MK) (1030 erg s-1) (ks) (ks) (1011 cm)  
04-016 V830 Tau 22 2.8 $\ge$33 $\ge$8.5 $\cdots$ 11.4 $\cdots$ $\cdots$
09-026 HQ Tau 19 4.6 $\ge$34 $\ge$9.1 $\cdots$ 45.2 $\ga$ 7.1 $\cdots$
11-057 FS Tau 36 1.4 $\ge$42 $\ge$6.3 $\cdots$ 15.2 $\la$ 2.7 4.1
12-040 DN Tau 19-27 1.0-1.4 $\cdots$ $\cdots$ $\cdots$ $\cdots$ $\cdots$ $\cdots$
15-040 DH Tau 20 4.7 $\ge$24 $\ge$9.8 $\cdots$ 34.2 $\la$ 4.5 3.5
17-066 JH 108 28 1.5  46 3.7 3.8 3.3 $\la$ 0.6 0.7
21-039 HD 283572 19-26 10-14 $\cdots$ $\cdots$ $\cdots$ $\cdots$ $\cdots$ $\cdots$
22-047 XZ Tau 40 0.9  70 3.8 35.3 $\cdots$ $\cdots$ $\cdots$
22-089 L1551 51 16 1.4 $\ge$17 $\ge$2.5 $\cdots$ 9.5 $\la$ 1.1 1.1
23-032/24-028 V410 Tau 20 3.8  43 11.7 20.9 8.1 0.1-0.7 0.1-0.4
23-047/24-040 V892 Tau 23 9.5  100 46.8 3.4 $\cdots$ 1.0 d 0.5
23-050/24-042 V410 X7 24 0.7 $\ge$63 $\ge$4.9 1.5 2.1 $\ge$0.5 0.4
23-056/24-047 Hubble 4 19-30 3.5-5.4 $\cdots$ $\cdots$ $\cdots$ $\cdots$ $\cdots$ $\cdots$
23-074/24-061 V819 Tau 14 2.0  19 3.8 1.3 10.1 0.7 0.5
26-072 HBC 427 25 3.2  72 15.8 3.2 20.2 2.4 1.9
28-100 BP Tau 18 1.5  47  4.9 2.6 10.4 1.2 0.9
05-031 HD 283810 10 1.5 e  26 3.2 e 0.5 2.4 0.3 $\cdots$
16-031 J04195676+27 $\cdots$ $\cdots$  21 3.5 0.6 1.6 0.01 $\cdots$
'' '' $\cdots$ $\cdots$  42 20.0 0.8 1.5 0.01-0.09 $\cdots$
22-024 HD 285845 18 2.1 f  40 6.5 f $\cdots$ $\cdots$ $\cdots$ $\cdots$
a Temperature of the hot component and luminosity in the quiescent (or lowest count rate) intervals; a range is given for sources with slow modulation or complex variability. b Peak temperature and luminosity for sources showing flares or prolonged rise/decays. c Rise and decay e-folding timescales. d From Giardino et al. (2004). e Computed for d = 60 pc. f Computed for d = 90 pc.

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