ChJAA Vol 1, No 5 (2001) / Mao

Radio Observations of Sgr~B2 Xin-Jie Mao and Jiang-Tao Su

Xin-Jie Mao, Jiang-Tao Su


The 13CO (J=1-0) map of the molecular cloud Sgr B2 reveals that the mass center of the molecular cloud nucleus does not coincide with that of compact HII regions which are likely to be the outcome of a shock on the cloud. We find evidence of cloud contraction probably resulting from cloud-cloud collision at subsonic speed.


ISM: clouds --- evolution --- ISM: lines and bands

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