Left: total intensity image of the 1.2 THz rest-frame continuum of both the QSO and SMG, along with Lyα emitter 2 in BR 1202-0725 The half power beam size of the data, 056 × 049 (∼3.8 kpc × 3.3 kpc), is indicated in the lower left corner of the panel. Middle: total intensity maps of the H₂O (2₂₀–2₁₁) emission in the SMG (top) and both the HF and H₂O emission in the QSO (bottom), overlaid onto a gray-scale image of the continuum. For the SMG, the H₂O at the lowest velocities (light blue; 20–915 km s⁻¹) and the H₂O at the highest velocities (dark blue; 915–1345 km s⁻¹) are kinematically resolved by ∼0.15″ (∼1 kpc). For the QSO, both the H₂O (blue) and HF (magenta) emission are unresolved. All velocities are with respect to the HF J = 1–0 line assuming z = 4.6948. The crosses mark the peak of the continuum emission. Contour levels: 3, 6, 10, 15 σ, with σ = 0.059 and 0.033 Jy beam⁻¹ × km s⁻¹ for the low- and high-velocity H₂O-emitting gas in the SMG, and σ = 0.046 and 0.031 Jy beam⁻¹ × km s⁻¹ for the H₂O- and HF-emitting gas in the QSO, respectively. Right: position-velocity plots of H₂O (blue) and HF (magenta) emission in the QSO and SMG, taken along the black lines in the middle plots. To increase the signal-to-noise ratio, we binned every 6 channels of the data into a single channel and subsequently Hanning smoothed the binned data to a velocity resolution of 66 km s⁻¹. Contour levels of the H₂O and HF in both the QSO and SMG: −4, −2.3 (gray), 2.3, 4, 6, 9, 12 (blue/magenta) σ, with σ = 0.16 mJy beam⁻¹. The dark gray region lies between the two spectral windows for which we have no data.