Finding charts of the different known continuum sources in Sgr B2(N) (top panels) and Sgr B2(M) (bottom panels). The yellow circles indicate well-known Hii regions (see Schmiedeke et al. 2016 and references therein), while the red crosses show the position of the sub-millimeter sources identified by Qin et al. (2011). The association of the ALMA sources with the Hii regions and sub-millimeter sources is summarized in Table 4.