Context :

Aims : We aim to study dust properties of massive star forming regions in the outer Galaxy , in a direction opposite to the Galactic center .

Methods : We present observations of six outer Galaxy point sources IRAS 01045+6505 , 01420+6401 , 05271+3059 , 05345+3556 , 20222+3541 and 20406+4555 , taken with the Submillimeter Common-User Bolometer Array ( SCUBA ) on the James Clerk Maxwell Telescope ( JCMT ) at 450 and 850 \mu m. Single temperature greybody models are fitted to the Spectral Energy Distribution of the detected sub-mm cores to derive dust temperature , dust emissivity index and optical depth at 250 \mu m. The observed radial intensity profiles of the sub-mm cores were fitted with power laws to derive the indices describing the density distribution .

Results : At a resolution of 15″ all six IRAS point sources show multiple emission peaks .
Only four out of fourteen detected sub-mm cores show associated mid-infrared emission .
For the sub-mm cores we derive dust temperatures of 32 \pm 5 K and dust emissivity indices between 0.9 and 2.5 .
The density profiles of the sub-mm cores can be fitted by a single power law distribution with indices -1.5 \pm 0.3 , with most cores showing an index of -1.5 .
This is consistent with most observations of massive star forming regions and supports predictions of models of star formation which consider non-thermal support against gravitational collapse .

Conclusions :