Infall, Fragmentation and Outflow in Sgr B2

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

Observations of H${}_2$CO lines and continuum at 1.3 mm towards Sgr B2(N) and Sgr B2(M) cores were carried out with the SMA. We imaged H${}_2$CO line absorption against the continu…