Mass growth in MYSO fed by companion
  We present a Submillimeter Array (SMA) observation towards the young massive
double-core 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 clearly seen in the Spitzer images. The SMA observations reveal a gas flow
between the NE Bubble and the SW MYSO in a broad velocity range from 5 to 30
km/s with respect to the system velocity. The gas flow is well confined within
the interval between the two objects, and traces a significant mass transfer
from the NE gas Bubble to the SW massive core. The transfer flow can supply the
material accreted onto the SW MYSO at a rate of $4.2\times10^{-4} year^{-1}$.
The whole system therefore suggests a mode for the mass growth in MYSO from a
gas transfer flow launched from its companion gas clump, despite that the
driving mechanism of the transfer flow is not yet fully determined from the
current data.
