Lines, and total and continuum emission maps obtained from the spw7 band at 233 GHz. Contours represent 3, 5, 7, 10, 20, 30, 50, 70, and 100 σ, with σ = 0.22 K, the rms in a channel of resolution Δv = 0.122 MHz. The hot cores are marked by a star symbol. The total emission is averaged over the 1.9 GHz band. For the line map, the first two contours are added in red to reveal the fainter hot cores.