Alma and vla observations of the outflows in iras 16293-2422

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