A survey of CS J = 7 → 6 in regions of massive star formation
A survey of CS J = 7 → 6 in regions of massive star formation
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DOI：
10.1086/191636
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发表时间：
1991
影响因子：
8.7
通讯作者：
R. Plume;D. Jaffe;N. Evans
中科院分区：
文献类型：
--
作者：
R. Plume;D. Jaffe;N. Evans
本文介绍了利用一台精确定位的H2O脉泽对179个恒星形成区进行CSJ =7→6辐射测量的结果。在104个源（58%）中检测到该线;检测的平均T * R为2.9 K，平均Δ T * R dv为28 K km/s。使用LVG激发计算，对于CS 7→6光学深度为1，密度估计在log（n）为4.7和6.7之间
The results of a survey for CS J=7→6 emission towards 179 star-forming regions, selected by the presence of an H 2 O maser with an accurate position, are presented. The line was detected in 104 sources (58%); the detections have a mean T * R of 2.9 K and a mean ∫T * R dv of 28 K km/s. Using LVG excitation calculations, the densities are estimated between log (n) of 4.7 and 6.7 for a CS 7→6 optical depth of 1