Fig. 3.
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Top row: Comparison of the line profiles of [O I] λ6300 and [S II] λ6731 for each epoch of data. The line profiles are normalised to max peak height to emphasise changes in the line shape over time. Bottom row: Position spectra for the [O I] λ6300 and [S II] λ6731 lines in 2003 (red), 2010 (blue), and 2021 (black). The analysis of the [O I] λ5577 line is not presented here, as it does not show an extended jet component due to its high critical density.
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