Interferometric observables measured on Antares by VLTI/PIONIER at 1.61 μm (black points). The green curve corresponds to a LDD power-law model of 37.89 mas in diameter and a LD exponent of 0.52. The color points represent the probability of the observables computed for 1000 iterations of a LDD power law model of 37.89 mas in diameter and a LD exponent of 0.52 with two distributions of bright Gaussian spots. The first has spots with a FWHM of 17 mas, a filling factor of 0.5 and a contribution of 3% to the total intensity. The second has spots with a FWHM of 2 mas, a filling factor of 0.4 and a contribution of 10% to the total intensity. Top panel: squared visibilities. Bottom panel: closure phases. The spatial frequency domain is fragmented to zoom onto each data range.