Fig. 4
Histogram of the LOS measurements of the column density ratios N(Civ)/N(Ovi) (left panel) and N(Nv)/N(Ovi) (right panel) inside the simulated LB (lLOS < 100 pc) for 0.5–1.0 Myr after the last SN explosion. The vertical dotted line marks the critical column density ratios of −0.9 (left) and −1.0 (right), respectively (for details see text).
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