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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 A2.

Continuum-subtracted KCWI and OSIRIS spectra extracted from a 1﹩\mathop{.}\limits{^{\prime\prime} }﹩5 diameter aperture centering on the northern core (object 3) of UGC 2369S. We detect a blueshifted broad component in Hα and Hβ but not in other hydrogen recombination lines as seen in the K-band OSIRIS exposure, arguing against its broad-line region origin.

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