New ALMA data at 50 au resolution of HH46/47 shows a rotating-infalling envelope to disk transition at 30 au around a 0.3 solar-mass protostar, with outflow shells expanding radially and supporting entrainment over disk-wind origin.
Hydrodynamical Simulations of Jet- and Wind-driven Protostellar Outflows
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abstract
We present two-dimensional hydrodynamical simulations of both jet- and wind-driven models for protostellar outflows in order to make detailed comparisons to the kinematics of observed molecular outflows. Comparing the different simulations with observations, we find that some outflows, e.g., HH 212, show features consistent with the jet-driven model, while others, e.g., VLA 05487, are consistent with the wind-driven model.
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ALMA High-resolution Observation of the HH46/47 Outflow/disk/envelope System
New ALMA data at 50 au resolution of HH46/47 shows a rotating-infalling envelope to disk transition at 30 au around a 0.3 solar-mass protostar, with outflow shells expanding radially and supporting entrainment over disk-wind origin.