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Table 1:

$JHK^{\prime }$infrared photometry for the sources included in our survey.

Source
2MASS RA Dec Ref. J ($1.27~\mu$m) H ($1.63~\mu$m) $K^{\prime }$($2.12~\mu$m)
IGR J18027-2016 2MASS J18024194-2017172 18 02 41.94 -20 17 17.3 C $12.79\pm 0.06$ $11.96\pm 0.08$ $11.48\pm 0.05$
SAX J18186-1703 2MASS J18183790-1702479 18 18 37.90 -17 02 47.9 Z1 $10.08\pm 0.06$ $8.94\pm 0.08$ $7.79\pm 0.05$
IGR J18483-0311a 2MASS J18481720-0310168 18 48 17.20 -03 10 16.8 C $10.84\pm 0.03$ $9.38\pm 0.02$ $8.47\pm 0.02$
IGR J19140+0951 2MASS J19140422+0952577 19 14 04.23 +09 52 57.7 Z2 $11.33\pm 0.06$ $9.71\pm 0.08$ $8.83\pm 0.05$

Notes. (a) Photometry from Rahoui & Chaty (2008). For this source, the filters are centered on 1.25, 1.65 and $2.20~\mu$m respectively.
References. C: Chaty et al. (2008); Z1: in't Zand et al. (2006a); Z2: in't Zand et al. (2006b).


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