Probing Protoplanetary Disk Winds with C ii Absorption

Abstract We present an analysis of wind absorption in the C ii λ 1335 doublet toward 40 classical T Tauri stars with archival far-ultraviolet (FUV) spectra obtained by Hubble Space Telescope. Absorption features produced fast or slow winds are commonly detected (36 out targets) our sample. The velocity decreases disk inclination, which is consistent expectations for a collimated jet. Slow mostly disks intermediate high without significant dependence on inclination. Both and preferentially FUV lines neutral singly ionized atoms. Mg 2796, 2804 show lines. develop simplified semi-analytical disk/wind models to interpret observational absorption. from thermal-magnetized model generally inconsistent purely thermal wind. indicate that occurs inner disk, offers diagnostic complement optical forbidden line emission traces larger volumes.