Table 7: Summary of spectral types (SpT) and distances (${D}_\ast $) derived from our fits for confirmed supergiant stars in our sample. ($^\ast $) sources with an accurate spectral type found in the literature ($^\dagger $) confirmed supergiant stars whose temperature derived from our fits was used to assess their accurate spectral type. References to the determination of the spectral type and/or spectral class of these sources are found in Table 1.
Sources SpT ${D}_\ast({\rm kpc})$
IGR J16318-4848$^\ast $ sgB[e] $\sim$1.6
IGR J16320-4751$^\dagger $ O8I $\sim$3.5
IGR J16358-4726$^\ast $ sgB[e] $\sim$18.5
IGR J16465-4507$^\ast $ B0.5I $\sim$9.4
IGR J16479-4514$^\dagger $ O8.5I $\sim$4.9
IGR J17252-3616$^\dagger $ O8.5I $\sim$6.1
IGR J17391-3021$^\ast $ O8I $\sim$2.7
IGR J17544-2619$^\ast $ O9I $\sim$3.6
IGR J19140+0951$^\ast $ B1I $\sim$3.1

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