An observational Study of galactic center galactic center regions with sub millimeter molecular and atomic lines

对银河系中心的观测：我们绘制了分子云（0.02+0.02）5弧分的区域，它显示了在银河系中心的CI线（492 GHz）上发现的特殊速度结构。Nobeyama 45米望远镜观测到的与分子云相关的CI发射出现在距离CO云30弧秒的地方。C/CO丰度比为0.45，约为巨分子云典型值的3倍。在银河盘上。这些结果表明存在一个激波区，在这个激波区中，分子气体被几次超新星爆炸的激波解离。核心区域星系的观测：对NGC253进行了CO （J=3-2）线的测绘观测，NGC253是一个活跃的恒星形成星系。强CO辐射不仅出现在中心区域，而且在距离原子核几kpc的圆盘上也发现了强CO辐射。

Observations of our galactic center:We have mapped an area of 5 arc-minutes of the molecule cloud (0.02+0.02) that displays peculiar velocity structure discovered in the galactic center in the CI line (492 GHz). The CI emission associated with the molecular cloud which was observed with the Nobeyama 45-m telescope, appeared 30 arc-seconds away from the CO cloud. The C/CO abundance ratio was found to be 0.45, which is about 3 times as large as a typical value for giant molecular clouds. in the galactic disk. These results suggest existence of a shocked region in which molecular gas has been dissociated by shock waves by several supernova explosions.Observation of nucleus regions galaxies:Mapping observations in the CO (J=3-2) line were made for NGC253, a galaxy of active star formation. The strong CO emission was found not only in the center region but also in the disk a few kpc from the nucleus where the CI was also discovered.