Velocity distribution maps from –140 to 20 km s^-1 in the inner 40′′ overlayed onto the MIR (8.6 μm) PAH image from Fig. 6. Red contours show the CS(5–4) emission at the levels [4, 8, 12, 24, 48, − 3, − 45 ] × σ (=0.91 mJy beam^-1), green contours the SiO(6–5) emission at [4, 5, 6, 7, 8, 10, 12, 14, − 4 ] × σ (=0.94 mJy beam^-1), and yellow contours represent the H36β emission at [3, 4, 5, 6, 8, 10, − 3, − 6 ] × σ (=1.05 mJy beam^-1) for comparison to the RRL emission. Green numbers denote the IRS sources and the green cross Sgr A*.