Image Details
Caption: Figure 9.
Extinction-corrected line ratios compared between SDSS galaxies (contours) and UGC 2369S on [N II]–[O III] BPT plane. All Voronoi bins are plotted, and they correspond to regions in Figure 8. The lines are L. J. Kewley et al. (2001) maximum starburst (green), G. Kauffmann et al. (2003) pure star formation (purple), and K. Schawinski et al. (2007) LINER–Seyfert separation (blue).
© 2026. The Author(s). Published by the American Astronomical Society.