We present observations of NGC1333 from SCUBA-2 on JCMT , observed as a JCMT Gould Belt Survey pilot project during the shared risk campaign when the first of four arrays was installed at each of 450 and 850 microns .
Temperature maps are derived from 450µm and 850µm ratios under the assumption of constant dust opacity spectral index \beta = 1.8 .
Temperatures indicate that the dust in the northern ( IRAS 6/8 ) region of NGC1333 is hot , 20–40 K , due to heating by the B star SVS3 , other young stars in the IR/optically visible cluster , and embedded protostars .
Other luminous protostars are also identified by temperature rises at the 17 ^ { \prime \prime } resolution of the ratio maps ( 0.02 pc assuming a distance of 250 pc for Perseus ) .
The extensive heating raises the possibility that the radiative feedback may lead to increased masses for the next generation of stars .