Fig. 5.
Variations of the UV colors and FUV apparent magnitude as we vary the aperture size with (continuous line) and without (dashed line) aperture corrections. Along each line, from left to right, the apparent magnitude for the 5 nebular regions, color coded as in Fig. 3, decreases as we increase the aperture radius: from 2.4 to 3.8 to 7.5″ as marked by the square symbols.
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