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Observational Signatures of Dark Matter Vortices in Ultralight Bosonic Halos via Gravitational Lensing

  • Authors: Rongzi Zhou, Dylan M. H. Leung, Jason S. C. Poon, Ming-Chung Chu

Rongzi Zhou et al 2026 The Astrophysical Journal Letters 1006 .

  • Provider: AAS Journals

Caption: Figure 3.

The effect of observational resolution on vortex detection. Lensed images for the Ω = 2.82 deg Myr−1 case are shown with PSF FWHM of 1 mas (left), 10 mas (center), and 70 mas (right), respectively. The vortex-induced flux anomalies are clearly resolved at 1 mas (typical of VLBI) but are washed out at 70 mas (typical of HST optical imaging).

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