TS map centred on the position of ζ Ophiuchi (HIP 81377), on a 2° square with a bin size of 0.1°. The blue (green) cross indicates the position of the additional source A on the left (right) map. White contours show the bow shock of ζ Ophiuchi observed in infrared at 22 μm by WISE. On the left side, only 2FGL sources are included in the fitted model, in the right map the additional source A is also included.