Comparison of the K_s- (left) and L′-band (right) identifications. L′-band excess sources in the field around SgrA* as shown in the overview map in Fig. 1 and listed in Table 4. The arrow color-coding for the observing bands and the proper motions are given between the images in the lower part of the panel. The 2004 map sizes are 0.932′′ × 0.932′′ (70 × 70 pixels) in the K_s-band and 0.945′′ × 0.945′′ (35 × 35 pixels) in the L′-band. We have indicated the sources with arrows and labels. The gray-scaling is given in bars and the contours are logarithmically spaced and given for display purposes only. The DSO is visible at the lowest contour levels in the appropriate plot in Fig. A.9. In Fig. A.9 we marked the region in which D7 is located with a dashed circle. Some contour excursions are visible, but no clear detection of a compact source is possible. For source D4/X7 see Muzic et al. (2010).