Integrated emission maps (moment zero) of nonblended transitions of CH₃CN, C₂H₅CN, C₂H₃CN, NH₂CN, NH₂CHO, and HC₃N (ν₇ = 2) toward NIRS3. The emission maps of detected N-bearing species are overlaid with the 2.29 mm continuum emission map (black contour). The contour levels are at 20%, 40%, 60%, and 80% of the peak flux. The red ellipses represent the synthesized beams of the emission maps.