Fig. 3.
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Emission-line maps of the Leo A H II region. Left panel: Hβ emission-line map. Middle panel: [O III]λ5007 emission-line map. Right panel: Hβ/Hγ map, where the Hβ map contours are superimposed for reference. In all panels, the colour-code represents the flux of the emission lines per spectral fibre acquired by fitting Gaussian curves. The dashed grey lines are circles of increasing radius of 1.34″ (2 px) units up to 13.4″ (20 px). The dotted black lines show the angles that separate the south-western emission clump and the extended arc.
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