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UGC 2369S: A Kiloparsec-scale Triple Merger Candidate Identified in a Nearby Luminous Infrared Galaxy

  • Authors: Yuanze Ding, Michael J. Koss, Fiona A. Harrison, Charles C. Steidel, Connor Auge, Jared Gillette, Erica Hammerstein, Ruancun Li, Macon Magno, Ignacio del Moral-Castro, Alessandro Peca, Claudio Ricci, Yiqing Song, Ezequiel Treister, Zhuyun Zhuang

Yuanze Ding et al 2026 The Astrophysical Journal 1002 .

  • Provider: AAS Journals

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).

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