Forbidden lines from T Tauri disk winds - I. High magnetic torque models

We present synthetic emission maps and long-slit spectra in the [O I]6300 a nd [S Ir]6731 lines for self-similar, cold MHD disk winds of high magnetic torque. We find that such models produce both a dense, compact low-velocity component (LVC) and a lower density, collimated high-velocity component (H VC) sharing several observed properties of jets from T Tauri stars (resolve d transverse sizes, strong apparent acceleration in [O I], larger spatial d isplacement and lower gradients in [S II]). Hence, the LVC and HVC observed in TTS might be formed in two distinct regions of the same wind. We sugges t that disk wind models with lower ratio of magnetic to viscous torque and significant coronal heating at the wind base could compare even more favora bly with the observations.