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The “Little Dark Dot”: Evidence for Self-interacting Dark Matter in the Strong Lens SDSS J0946+1006?

  • Authors: Shubo Li, Ran Li, Kaihao Wang, Zixiang Jia, Xiaoyue Cao, Carlos S. Frenk, Fangzhou Jiang, Aristeidis Amvrosiadis, Shaun Cole, Qiuhan He, Samuel C. Lange, Richard Massey, James W. Nightingale, Andrew Robertson, Maximilian von Wietersheim-Kramsta, Xianghao Ma

Shubo Li et al 2025 The Astrophysical Journal 994 .

  • Provider: AAS Journals

Caption: Figure 5.

Left: the MGE fitting result for the density profile of the input SIDM halo. The 3D density profile of the perturber is shown as a gray line, while the MGE fitting result is represented by a navy dashed line. The relative error is illustrated in the bottom subplot. Right: the mock lensing image, with the red cross representing the position of the input SIDM halo.

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