A large-scale CO imaging of the Galactic Center - II. Dynamical properties of molecular clouds

被引：0
|
作者：
Oka, T
Hasegawa, T
Sato, F
Tsuboi, M
Miyazaki, A
机构：
[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[2] Univ Tokyo, Fac Sci, Inst Astron, Tokyo 1818588, Japan
[3] Tokyo Gakugei Univ, Dept Astron & Earth Sci, Tokyo 1848501, Japan
[4] Ibaraki Univ, Inst Astrophys & Planetary Sci, Mito, Ibaraki 3108512, Japan
来源：
AGN/NORMAL GALAXY CONNECTION | 1999年 / 23卷 / 5/6期
关键词：
D O I：
10.1016/S0273-1177(99)00252-5
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The data from the Nobeyama Radio Observatory 45 m telescope Galactic Center CO survey have been analyzed to generate a compilation of molecular clouds with intense CO emission in this region. Clouds are identified in an automated manner throughout the main part of the survey data for all CO emission peaks exceeding 10 K (T(R)*). Correlations between the size, velocity dispersion, virial mass, and the CO luminosity, for the molecular clouds in the Galactic center were shown. We diagnosed gravitational stabilities of identified clouds assuming that the disk clouds are nearly at the onset of gravitational instability. Most of the clouds and cloud complexes in the Galactic center are gravitationally stable, while some clouds with intense CO emission are gravitationally unstable. (C) 1999 COSPAR. Published by Elsevier Science Ltd.
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收藏
页码：981 / 984
页数：4
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