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Fig. 7

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A mosaic of two [O iii] λ5007 images showing the SMCB2-H ii field. The numbers refer to Table 2. The delineated area in the lower frame does not show nebular emission in [O iii] while the same area extracted from the Hβ image and displayed on the left, shows the new object N23A ~10 south of star 28 (Fig. 3). The whole [O iii] mosaic has a size of the 138× 264 or ~42 pc ×80 pc, while the extracted Hβ image is 28× 30. The H ii regions N21, N22, N23, N25, N26, and the new region N23A are indicated. Horizontal lines show the positions a,b,c,d, and e of the ESO BC long-slit spectroscopic observations. The brighter stars of V < 15.5 mag and B − V ≤ 0 mag are labeled.

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