Probability map of SpT and A_V from comparison with spectral templates. Darker regions represent lower values of χ² from the comparison with the young templates for object #40. We show the best fit SpT and A_V in orange. The green line represents the SpT derived from a combination of various spectral indices (see Sect. 3.1.3) for the entire A_V grid. At the right and bottom panels we also show the χ² histogram of SpT and A_V.