Fig. B.1.
Images on a field of view of 80 μas of a thick disk with inner radius rin = 6M surrounding a Lamy wormhole (left) or a boson-star spacetime with k = 1 and ω = 0.7 (right). The compact object spin parameter is approximately the same for both panels. The two spacetimes, although extremely different at a theoretical level, are both horizonless and possess photon orbits.
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