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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 14.

Stellar mass map estimated from the g − i color and H-band magnitude, with the HST g-band (F435W) contour being overplotted. The western core shows a deficiency in stars, which is consistent with the relatively low dust extinction and SFR, indicating a history of tidal disruption. Note that this method tends to underestimate the stellar mass in dusty regions, due to the power-law scaling between the g − i color and mass-to-light ratio.

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