Top panels: synthetic intensity maps computed for the best matching RHD simulation of Table 3 at 1.52 (left) and 1.70 (rigth) μm. The intensity is normalised between [0, 1]. The images, 64 × 64 pixels with 0.2 mas pixel⁻¹, were convolved with the interferometric beam (Fig. 1). The contour lines are thesame as in Fig. 2. East is left, while north is up. Bottom panel: surface rendering difference between the synthetic images at 1.52 and 1.70 μm (right).