Fig. 3.
Composite of STs along MS, ordered from B1++ to B2. Each panel shows the original composite, along with the modeled continuum (cyan line). The lower part of the panels shows the result of the specfit analysis on the emission lines. HβBC: black line, HβVBC: red line; Fe II: green line; yellow lines: Hβ narrow components and [O III]λλ4959,5007.
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