Oral Presentation

Growth of a massive young stellar object fed by a gas flow from a companion gas clump

Author(s): Xi Chen (SHAO)

Presenter: Xi Chen (Shanghai Astronomical Observatory)

We report a formation mode of massive stars revealed in a young massive multiple system (G350.69-0.49). This system consists of a northeast (NE) diffuse gas bubble and a southwest (SW) massive young stellar object (MYSO), both seen from the Spitzer images. Observations with the Submillimeter Array reveal gas flows from the NE bubble into the SW MYSO in a broad velocity range. The flow appears to supply the material accreted onto the SW MYSO. These unique infrared and molecular gas kinematic structures and physical conditions in this system strongly suggest a potential mode for the mass growth in MYSO from a gas transfer flow ejected from a companion gas clump.