Table 6: The 20 candidates selected in this work.

Designation		 ${\it EW}_{\rm H\alpha}$ $A_{\rm V}$ $T_{\rm eff}$ Alit V $T^{lit} _{\rm eff}$ Ref. Classification
  ($\AA$) (mag) (K) (mag) (K)   in this work
WFI J12533662-7706393 Not Det. 5.58 $\dagger$3000 $\pm$ 250       PMS star cand.
C 17 No Em. 5.95 $\star$3600 $\pm$ 200 5.1   b PMS star cand.
C 33 No Em. 4.48 $\dagger$3700 $\pm$ 250 2.4   b PMS star cand.
IRAS 12535-7623 No Em. 3.38 $\star$3900 $\pm$ 200 5   a PMS star cand.
WFI J12583675-7704065 Not Det. 3.84 $\dagger$2400 $\pm$ 200       BD cand.
WFI J12585611-7630105 30 1.91 $\dagger$2900 $\pm$ 200       BD cand.
ISO-CHA II 29 No Em. 5.94 $\star$3900 $\pm$ 200 11.5   b PMS star cand.
WFI J12591881-7704419 No Em. 4.98 $\star$3800 $\pm$ 200       PMS star cand.
WFI J12592348-7726589 No Em. 3.33 $\dagger$3700 $\pm$ 250       PMS star cand.
WFI J13005297-7709478 Not Det. 5.50 $\dagger$2500 $\pm$ 200       BD cand.
WFI J13005531-7708295 No Em. 4.13 $\star$3800 $\pm$ 200       PMS star cand.
IRAS F12571-7657 No Em. 3.95 $\star\star$>3000 8,13   b, c PMS star cand.
WFI J13014752-7631023 No Em. 0.88 $\dagger$2800 $\pm$ 200       BD cand.
C 50 20 3.46 $\dagger$3000 $\pm$ 200 2.0   b PMS star cand.
C 51 20 1.16 $\dagger$3300 $\pm$ 250 2.3   b PMS star cand.
WFI J13031615-7629381 15 0.61 $\dagger$2900 $\pm$ 200       BD cand.
C 62 35 3.53 $\dagger$3000 $\pm$ 200 4.1, 4 3140 b, c PMS star cand.
WFI J13071960-7655476 25 0.50 $\star$3000 $\pm$ 200       PMS star cand.
C 66 25 3.87 $\dagger$2900 $\pm$ 200 3.7, 0 2793 b, c BD cand.
2MASS13125238-7739182 10 1.36 $\dagger$3400 $\pm$ 250     d PMS star cand.
Notes to Col. 4: $\dagger$ Temperature derived from the dereddened ( m856-m914) colour index (Sect. 3.2). $\star$ Temperature derived from the SED fitting method described in Sect. 5.3.2. $\star\star$ See Appendix C.
References: (a) Larson et al. (1998); (b) Vuong et al. (2001); (c) Allers et al. (2006); (d) Young et al. (2005).

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