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Can Third- and Fourth-order Multipoles plus Radial Variation of Isodensity Ellipses Explain the Observed Flux Ratios in B1422+231? YES, and a Lesson Learned from a TNG100 Lensing Galaxy Sample

Authors: Ruizhe Feng, Dandan Xu, Dominique Sluse, Giulia Despali, Anowar J. Shajib, Cai-Na Hao

Ruizhe Feng et al 2026 The Astrophysical Journal 1012 .

Provider: AAS Journals

Caption: Figure 3.

An example of the isophote-fitting results of simulation galaxies (subhalo ID: 208612; projected along the z-axis). Background gray-scale map: r-band light distribution; red lines: isodensity contours of total mass density distributions; black lines: elliptical isodensity contours fitted to the mass map.

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