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Fig. 14


Comparison of the observed (left panel) and two modelled Ks vs. V − Ks diagrams for the field F170. Stars of different luminosity classes are shown in colours: supergiants (class I) and bright giants (class II) in black, giants (class III) in red, subgiants (class IV) in green, main-sequence stars (class V) in blue. Both models are for the standard extinction aV = 0.70 mag/kpc, but the one in the right panel contains additional interstellar clouds at distances 11–13 kpc from the Sun. The wider spread in the V − Ks colour for giants and proper number of stars in the small box indicate that the model with the clouds provides the better fits.

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