An example of the separation of the various contributors to the observed line profiles in the 2011 Aug. 21 NOT spectrum. Top: [O I] 6300 Å. Bottom: [O III] 5007 Å (solid), Mg I 4571 Å (dot), [S II] 6716 Å (dash), [N II] 6548 Å (dot-dash). The Mira continuum has been removed in each but the scaling is for display (arbitrary flux units). The spike at +60 km s-1 is a cosmic ray hit near Mg I. See text for description. No velocity shifts have been applied.
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