Zoom into the G10.3 complex. In all 4 panels the solid contours present the 875 μm continuum contours (start at 3σ and continue in 9σ steps, 1σ ≈ 70 mJy beam^-1) whereas the grey-scale shows other wavelength data as outlined over each panel. The dashed 21 cm contours in the right panel go from 15 to 60 mJy beam^-1 in 15 mJy beam^-1 steps, and from 120 to 840 mJy beam^-1 in 240 mJy beam^-1 steps. The K-band data are taken from Bik (2004). The white central part of the 24 μm image is saturated. The triangles in the left panel mark the Class ii CH₃OH maser positions from Walsh et al. (1998). The white star in the right panel marks the position of an UCHii region (Wood & Churchwell 1989), and the additional labels there name sources discussed in the main text.