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Probing The Gaseous Disk Of T Tau N With Cn 5-4 Lines, L Podio, I Kamp, C Codella, B Nisini, G Aresu, Sean D. Brittain, S Cabrit, C Dougados, C Grady, R Meijerink, G Sandell, M Spaans, W.-F. Thi, G J. White, P Woitke

Sean D Brittain

We present spectrally resolved observations of the young multiple system T Tau in atomic and molecular lines obtained with the Heterodyne Instrument for the Far Infrared on board Herschel. While CO, H2O, [Cii], and SO lines trace the envelope and the outflowing gas up to velocities of 33 km s−1 with respect to systemic, the CN 5–4 hyperfine structure lines at 566.7, 566.9 GHz show a narrow double-peaked profile centered at systemic velocity, consistent with an origin in the outer region of the compact disk of T Tau N. Disk modeling of the T Tau N disk with the thermo-chemical …