Mass loss from rapidly rotating magnetic protostars

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Abstract
[[abstract]]The authors propose that bipolar outflows from young stellar objects originate from a protostar rotating at breakup at its equator because it is being spun up by an adjoining accretion disk. Mass outflow at an appreciable fraction of the infall rate from a surrounding molecular cloud core onto the star and disk can be driven centrifugally if the protostar has a sufficiently strong magnetic field. The expansion of the flow toward the rotational poles may provide a collimation mechanism for focusing an ordinary stellar wind into optical jets. --------------------------------------------------------------------------------[[fileno]]2010118010082[[department]]物理

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