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Merger-driven or Internal Evolution? A New Morphological Study of Tidal Disruption Event Host Galaxies

  • Authors: Janet N.Y. Chang, Connor Bottrell, Lixin Dai, Rudrani Kar Chowdhury, Meng Gu, Renbin Yan, Leonardo Ferreira, Sara L. Ellison, Scott Wilkinson, Thomas de Boer

Janet N.Y. Chang et al 2026 The Astrophysical Journal Letters 1004 .

  • Provider: AAS Journals

Caption: Figure 7.

Locations of 14 TDE host galaxies in the SFR versus M* plane. The different symbols represent the morphological classifications (see Section 2.5) of the TDE host galaxies. The opacity of the symbols indicates the image resolution used for classification: more opaque symbols correspond to hosts with DECaLS or UNIONS images, while more transparent symbols denote hosts for which only SDSS images were available. The GV region, as defined in Equation (12), is shaded in green, with other regions shown in gray. Notably, among the TDE host galaxies within the GV and observed with high-resolution imaging, three out of seven exhibit bar structures, and four out of seven display ring structures.

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