Fig. 5
Top panel: average spectrum of the total sample (74 SFGs). Bottom two panels: zoom of the composite spectrum, above and below 2000 Å. Spectral lines of interest are labeled. Blue: absorption stellar photospheric lines; red: interstellar absorption low-ionization lines; green: interstellar absorption high-ionization lines; magenta: emission nebular lines; black: emission and absorption lines associated with stellar winds; cyan: interstellar fine-structure emission lines.
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