Fig. 8.
Index values calculated for the OB population by INDICATE when applied to the entire stellar catalogue, 
, and the sub-sample, 
. Dashed black lines represent the respective significance thresholds (see text for details). Red Triangles represent OB stars within the radius of Trumpler 14 (top left) Trumpler 15 (top right) Trumpler 16 (bottom panel).
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