The JCMT Gould Belt Survey: SCUBA-2 observations of radiative feedback in NGC 1333
The JCMT Gould Belt Survey: SCUBA-2 observations of radiative feedback in NGC 1333
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DOI：
10.1093/mnrasl/sls015
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发表时间：
2012-10
影响因子：
4.8
通讯作者：
J. Hatchell;Tom J. Wilson;E. Drabek;E. Curtis;J. Richer;D. Nutter;J. D. Francesco;J. D. Francesco;D. Ward-Thompson
中科院分区：
文献类型：
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作者：
J. Hatchell;Tom J. Wilson;E. Drabek;E. Curtis;J. Richer;D. Nutter;J. D. Francesco;J. D. Francesco;D. Ward-Thompson
本文介绍了詹姆斯·克拉克·麦克斯韦望远镜（JCMT）上的SCUBA-2对NGC 1333的观测，该望远镜是JCMT古尔德带调查试点项目在共同风险运动期间观测到的，当时四个阵列中的第一个阵列分别安装在450和850 μm上。温度图是在恒定的尘埃不透明度光谱指数β = 1.8的假设下，由450 μm和850 μm的比值得到的。温度表明NGC 1333北部（IRAS 6/8）区域的尘埃是热的，20-40 K，这是由于B星SVS3、红外/光学可见星团中的其他年轻恒星和嵌入的原恒星的加热。其他发光的原恒星也可以通过17弧秒分辨率的温度上升来识别（假设英仙座的距离为250分之一，则为0.02分之一）。广泛的加热提高了辐射反馈可能导致下一代恒星质量增加的可能性。
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.