Abstract
Outflows from low-mass young stellar objects are thought to draw upon the energy released by accretion onto T Tauri stars. I briefly summarize the evidence for this accretion and outline present estimates of mass accretion rates. Young stars show a very large range of accretion rates, and this has important implications for both mass ejection and for the structure of stellar magnetospheres which may truncate T Tauri disks.
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Hartmann, L. (1997). The Observational Evidence for Accretion. In: Reipurth, B., Bertout, C. (eds) Herbig-Haro Flows and the Birth of Low Mass Stars. International Astronomical Union / Union Astronomique Internationale, vol 182. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5608-0_32
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