Table 1: List of SFXT candidates with quiescent flux $F_{\rm q}$, flaring characteristics: range of flare count rates  $F_{\rm fl}$, number of short (<15 ks) and long (>15 ks) flares  $N_{\rm fl}$, the average and range of durations for short flares and the list of durations for long flares  $t_{\rm fl}$ and source observing elapsed time  $T_{\rm obs}$.
Source Spectral Distance $F_{\rm q}$ $F_{\rm fl}$ $N_{\rm fl}$ $t_{\rm fl}$ [short] $t_{\rm fl}$ [long] $T_{\rm obs}$
  Type kpc ct/s ct/s short+long ks ks days
SFXT systems                
IGR J08408-4503 O8.5 Ib1 2.81 <0.1 2.1-3.9 2+0 3.6   52.0
IGR J17544-2619 O9 Ib2 2-42 0.06 4.2-24 8+0 2.5 (2-4.3)   127.0
XTE J1739-302 O8.5 Iab(f)3 1.8-2.93 0.08 3.0-28 12+1 4.2 (2-8) 50 126.4
SAX J1818.6-1703 O9-B1 I4   0.18 5.2-45 11+0 2.9 (2-6)   76.9
IGR J16479-4514 OB I5   0.2 2.5-19 27+11 3.6 (2-14) (16-35) + 84 67.0
AX J1841.0-0536 B0 I6   <0.1 3.7-15 4+0 5.8 (2-13.1)   51.9
AX J1820.5-1434 B4   <0.1 3.4-5.3 4+0 3.9 (2-9.6)   59.4
Intermediate systems                
IGR J16465-4507 B0.5 I7   0.1 2.5-6.9 0+3   19, 25, 45 66.7
AX J1845.0-0433 O9 Ia8 3.68 0.2 4.0-6.2 6+0 4.0 (2-14.3)   55.2
IGR J16195-4945 OB I9 79 0.2 2.8-4.8 6+0 2.2 (2-3.3)   71.8
IGR J16207-5129 B0 I4 44 0.4 2.8-9.2 9+2 4.3 (2-11) 18, 25 73.7
XTE J1743-363     0.5 4.1-9.2 16+3   2.5 (2-6.6) 21, 45, 61 122.9
Ref.: 1 Leyder et al. (2007), 2 Pellizza et al. (2006), 3 Negueruela et al. (2006a), 4 Negueruela & Schurch (2007), 5 Chaty et al. (2007), 6 Nespoli et al. (2007), 7 Negueruela et al. (2005), 8 Coe et al. (1996), 9 Sidoli et al. (2005).

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