PNes and SNRs in nearby galaxies

Emission line ratios are used to separate planetary nebulae (pne) from other bright [O III] emitting sources like compact supernovae remnants (SNRS) or H II regions. While many studies have used narrowband imaging for this purpose, the detailed spectral line information provided by integral field unit (IFU) spectroscopy grants a more robust way of categorizing different [O III] emitters.

We investigate the effects of snr contamination on the PNLF and find that we would fail to classify all objects correctly, when limited to the same data narrowband imaging provides. However, the few misclassified objects usually do not fall on the bright end of the luminosity function, and only in three cases does the distance change by more than 1{sigma}. We find generally good agreement with literature values from other methods.