Open Access

Fig. 4.


G − Ks vs. G colour–magnitude diagram of the sources selected after applying the criteria in the (J − Ks)0 vs. G − Ks and G − Ks vs. J − H colour–magnitude diagrams (see text). The solid orange line shows the equation G = 2(G − Ks)+3, and is designed to exclude the few cool giants that may still contaminate the sample.

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