The JCMT Gould Belt Survey: SCUBA-2 observations of radiative feedback in NGC1333
Di Francesco, J.
Monthly Notices of the Royal Astronomical Society
Oxford University Press for Royal Astronomical Society
We present observations of NGC 1333 from SCUBA-2 on the James Clerk Maxwell Telescope (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 μm. Temperature maps are derived from 450 and 850 μm ratios under the assumption of constant dust opacity spectral index β = 1.8. Temperatures indicate that the dust in the northern (IRAS 6/8) region of NGC 1333 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 arcsec 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.
Science and Technology Facilities Council (STFC)
Institute of Physics
Nuffield Foundation - Undergraduate Research Bursary
University of Exeter
National Research Council Canada
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2012 The Authors. Journal compilation © 2012 RAS. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Vol. 429 (1): pp. L10-L14