# Source of T Tauri wind?

What particularly causes the T Tauri star to eject the strong bipolar wind which clears the gases around the star?

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Bipolar outflows are usually characteristic of younger stars than T Tauri type. Are you asking about Herbig–Haro objects or younger than T Tauri type stellar wind bow shock? –  Noordung Dec 6 '13 at 6:55
i wanna ask about the kind of wind that cleared up the gas cloud in our solar system in its early years. –  Shivam Dec 6 '13 at 15:28

If you want to trigger outflows, there are two main processes that can help:

• magnetic field;
By the way, these two mechanisms are complementary, because slow outflows (of the order of 10 km s$^{-1}$) are observed around young protostar, whereas "fast outflows" -- jets, of the order of 100 km s$^{-1}$ -- are observed around late protostars, and these two mechanisms explained well the former and the later.