NOEMA images of NCv1.143. Color images are the ∼1.8 mm and ∼1.2 mm dust continuum. Yellow, red, and blue contours are the CO(10–9), H₂O, and H₂O⁺ lines. The synthesized beams are 0.76″×0.41″and 0.54″×0.30″for the 1.8 and 1.2 mm bands, respectively. The contour levels are: in steps of 1 σ started from ± 3 σ for the H₂O(2₁₁ − 2₀₂) and the H₂O⁺ lines; and in steps of 3 σ started from ± 3 σ for the H₂O(3₂₁ − 3₁₂) and the CO(10–9) lines.