Neutral atomic carbon in dense molecular clouds
Neutral atomic carbon in dense molecular clouds
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致密分子云中的中性原子碳
DOI：
10.1086/166966
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
D. Goldhaber
中科院分区：
文献类型：
--
作者：
J. Zmuidzinas;A. Betz;R. T. Boreiko;D. Goldhaber
在七个来源中检测到中性碳的370微米3 P2 - 3 P1精细结构线：OMC 1、NGC 2024、S140、W3、DR 21、M17和W51。同时分析J = 2-1数据和J = 1-0线的现有观测结果，可以推导出这些线的光学深度和激发温度。这些数据表明，这两个CI线很可能是光学薄，在这些云的CI到CO柱密度的比率通常约为0.1。54篇参考文献。
The 370 micron 3P2-3P1 fine-structure line of neutral carbon was detected in seven sources: OMC 1, NGC 2024, S140, W3, DR 21, M17, and W51. Simultaneous analysis of J = 2-1 data and available observations of the J = 1-0 line make it possible to deduce optical depths and excitation temperatures for these lines. These data indicate that both C I lines are likely to be optically thin, and that the ratio of C I to CO column densities in these clouds is typically about 0.1. 54 references.