ALMA and VLA observations of the outflows in IRAS 16293-2422
  We present ALMA and VLA observations of the molecular and ionized gas at
0.1-0.3 arcsec resolution in the Class 0 protostellar system IRAS 16293-2422.
These data clarify the origins of the protostellar outflows from the deeply
embedded sources in this complex region. Source A2 is confirmed to be at the
origin of the well known large scale north-east--south-west flow. The most
recent VLA observations reveal a new ejection from that protostar,
demonstrating that it drives an episodic jet. The central compact part of the
other known large scale flow in the system, oriented roughly east-west, is well
delineated by the CO(6-5) emission imaged with ALMA and is confirmed to be
driven from within component A. Finally, a one-sided blueshifted bubble-like
outflow structure is detected here for the first time from source B to the
north-west of the system. Its very short dynamical timescale (~ 200 yr), low
velocity, and moderate collimation support the idea that source B is the
youngest object in the system, and possibly one of the youngest protostars
known.
