Maps of the integrated emission of the different molecular species and transitions, within the whole velocity range of emission. The first contour is the 3σ level. Molecule, transition, and integration limits are indicated above each map. The beam size is indicated by the filled circle. The observed positions are marked with a cross. The contours levels (in units of K km s^-1) are, respectively (lowest (step) highest): a) 0.41 (1.0) 12.41; b) 0.51 (1.0) 11.51; c) 0.89 (2.0) 12.89; d) 0.4 (0.4) 2.4; e) 0.47 (0.7) 7.47; f) 0.81 (2.0) 16.81; g) 0.98 (3.0) 27.98; h) 1.25 (2.0) 19.25; i) 0.92 (1.5) 15.92. Coordinates are offsets (arcsec) with respect to (J2000).