Reconstructed images in L and M bands. They have 256 × 256 pixels with 0.39 mas pixel⁻¹ and are convolved with the interferometric beam (Fig. 1). The peak intensity is normalised between [0, 1], and the corresponding noise maps are shown in Fig. A.1. The highest noise value is ~ 1.5 × 10⁻⁴. The contour lines correspond to [0.10, 0.30, 0.70, 0.95, 0.97, 0.99]. East is to the left, and north is up. As reported in Sect. 2.2, the data quality of the images at wavelengths lower than ~3.3 μm and between 4.0 and 4.7 μm is compromised by the telluric spectrum at the observing site.