X-ray images (0.5–8 keV) of external galaxies and the fields of view studied. For M 31 and M 81 we study the sources within the ellipses with radii and position angle shown in Table 1. For Maffei 1, NGC 3379, NGC 4697, and NGC 4278 ellipses show D25 regions and squares show the HST fovs. The field of view of interest are the overlapping regions between the two. Crosses show detected GC-LMXBs in each galaxy. The Chandra image of Centaurus A can be found in Fig. 1 in Voss et al. (2009).