SMA 1.3 mm continuum emission (grayscale, lowest level corresponds to 3σ emission), where the black contours range from 5σ to 10σ in steps of 1σ (σ ~ 11 mJy beam^-1). Coordinate offsets are measured with respect to (α,δ) = (05^h35^m17.0^s, −05°22′00.0′′) (J2000.0). In panel a), the new sources are indicated by arrows with their corresponding IDs (compare with Tables 3 and 4). The vertical scale bars correspond to the median first and seventh nearest-neighbor separations of the SMA sources, λ_{obs 1} and λ_{obs 2}, respectively (see Sect. 3.3 and Table 5). Panel b) shows CO (2−1) red- and blueshifted emission from molecular outflows in red and blue contours, respectively. The red contour levels range from 14 to 136 Jy beam^-1 km s^-1 in steps of 14 Jy beam^-1 km s^-1. The blue contour levels range from 9 to 31 Jy beam^-1 km s^-1 in steps of 3 Jy beam^-1 km s^-1. The molecular outflow velocities range from 0 to 40 (redshifted emission) and from −20 to 0 (blueshifted emission).