H¹³CN/SO₂ integrated intensity map toward IRS3B appears to trace near the outflow launch location from the tertiary, IRS3B-c. There is pretty large asymmetry in the velocity channels covered by the red- and blueshifted emission. The panels correspond to low-, medium-, and high-velocity ranges. The following panel descriptions will be noted red (blue), corresponding to the Doppler shifted emission. Low velocity: velocity ranges 5.2 ﹩\to ﹩ 7.2 km s⁻¹ (4 ﹩\to ﹩ 4.8 km s⁻¹), contours start at 5σ (5σ) and iterate by 2σ (5σ) with the 1σ level starting at 0.0025 (0.0021) Jy beam⁻¹ for the red (blue) channels. Medium velocity: velocity ranges 7.2 ﹩\to ﹩ 9.2 km s⁻¹ (3.2 ﹩\to ﹩ 4 km s⁻¹), contours start at 5σ (5σ) and iterate by 2σ (2σ) with the 1σ level starting at 0.0016 (0.0016) Jy beam⁻¹ for the red (blue) channels. High velocity: velocity ranges 9.2 ﹩\to ﹩ 11.2 km s⁻¹ (1.6 ﹩\to ﹩ 3.2 km s⁻¹), contours start at 4σ (4σ) and iterate by 3σ (3σ) with the 1σ level starting at 0.0021 (0.0021) Jy beam⁻¹ for the red (blue) channels. The H¹³CN synthesized beam (0.″22 × 0.″14) is the bottom rightmost ellipse on each of the panels, and the continuum synthesized beam (0.″11 × 0.″05) is offset diagonally.