SABOCA 350-μm image of the fragmented prestellar core SMM 6 in Orion B9. The image is displayed with power-law scaling, and the colour bar indicates the surface-brightness scale in Jy beam^-1. The overlaid green SABOCA contours are plotted at three times the noise level (3σ = 180 mJy beam^-1). The white contours show the Herschel/SPIRE 250-μm dust continuum emission (18″ resolution); these contours are plotted at 3.0 and 3.5 Jy beam^-1. The green plus sign indicates the target position of our previous molecular-line observations, while the other plus signs mark the target positions of the present study (i.e., the 350-μm peaks). A scale bar indicating the 0.05 pc projected length is shown in the top left, with the assumption of a 450 pc line-of-sight distance. The three circles in the upper left corner show the effective FWHM of the SABOCA beam (), and the smallest () and largest () beamsizes of the present molecular-line observations.