Abstract
We present 450, 850 m and 1300 m images of regions with embedded candidate protostars. Some of them are associated with HH objects (HH 7-11, HH 1-2, HH 147, HH 111, HH 108) and have been previously iden- tied in the course of a 1300 m survey. Other regions were taken from the IRAS PSC (04239+2436, 04368+2557, 20050+2720, 20386+6751, 22134+5834, 23011+6126). The new mm/submm images show the detailed structure of the regions some of which contain new compact sources as well as extended emission features. The inferred mm/submm fluxes are combined with IRAS data in order to derive the temperature of the associated dust, its mass and the re{radiated luminosity. Taking the ratio of FIR{to{submm luminosity as an indicator for the evolu- tionary stage, we nd that 15 out of 17 sources have LFIR=Lsmm < 200, indicating that most objects are probably genuine protostars. For the rst time, we detect dust emission associated with HH objects themselves, H2 and CO flows which we interpret as density enhancements swept up by the ejected material.
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