The JCMT Gould Belt Survey: SCUBA-2 observations of radiative feedback in NGC 1333

被引:40
作者
Hatchell, J. [1 ]
Wilson, T. [1 ]
Drabek, E. [1 ]
Curtis, E. [2 ]
Richer, J. [2 ,3 ]
Nutter, D. [4 ]
Di Francesco, J. [5 ,6 ]
Ward-Thompson, D. [7 ]
机构
[1] Univ Exeter, Exeter EX4 4QL, Devon, England
[2] Univ Cambridge, Cavendish Lab, Astrophys Grp, Cambridge CB3 0HE, England
[3] Kavli Inst Cosmol, Cambridge CB3 0HA, England
[4] Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
[5] Natl Res Council Canada, Radio Astron Program, Victoria, BC V9E 2E7, Canada
[6] Univ Victoria, Dept Phys & Astron, STN CSC, Victoria, BC V8W 3P6, Canada
[7] Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England
基金
英国科学技术设施理事会;
关键词
stars: formation; dust; extinction; submillimetre: ISM; stars: protostars; MASS STAR-FORMATION; PERSEUS MOLECULAR CLOUD; SUBMILLIMETER DUST OPACITY; CONTINUUM EMISSION; DENSE CORES; FORMING REGIONS; DARK CLOUDS; PROTOSTARS; EVOLUTION; NEARBY;
D O I
10.1093/mnrasl/sls015
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present observations of NGC 1333 from SCUBA-2 on the James ClerkMaxwell 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 mu m. Temperature maps are derived from 450 and 850 mu m 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 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.
引用
收藏
页码:L10 / L14
页数:5
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