摘要: Observations reveal a strong link between disk accretion and energetic bipolar outflows in protostars. This connection could reflect the high efficiency of angular momentum transport by centrifugally driven winds launched from surfaces along large-scale, ordered magnetic field that threads disk. Vertical can also be achieved through torsional Alfven waves propagate lines into ambient medium. There is observational evidence for dynamically significant “open” molecular cloud cores, one show when core collapses to form central star are advected inward inflowing gas. It possible construct semi-analytic equilibrium models wind-driving disks with realistic ionization conductivity structure investigate their stability properties. These studies being complemented non-ideal–MHD numerical simulations.