Infall and Outflow of Molecular Gas in Sgr B2

Sheng-Li Qin, Jun-Hui Zhao, James M. Moran +5

Observations of two H${}_2$CO ($3_{03}-2_{02}$ and $3_{21}-2_{20}$) lines and continuum emission at 1.3 mm towards Sgr B2(N) and Sgr B2(M) have been carried out with the SMA. The mos…