Figure 4.
Voronoi tessellated extinction map (one star per Voronoi cell) for all 164 massive stars in Cyg OB2 with the extinction indicated by the grey-scale colour. The circular border of our study is approximately at the border of this image.
Voronoi tessellated extinction map (one star per Voronoi cell) for all 164 massive stars in Cyg OB2 with the extinction indicated by the grey-scale colour. The circular border of our study is approximately at the border of this image.
