Program: GN-2007A-Q-3

We propose an observation toward several classical T Tauri stars (CTTSs) in J-band by using the integral field spectrograph, NIFS of Gemini Telescope north. We would like to examine the 2-D spatial structure of the hot wind/jet close to the YSOs with J-band NIFS of Gemini. Direct comparison of the lines in J-bands ([FeII], PaB, Pa_Gamma, He I ) in velocity and in space with high angular resolution provides us with a key information not noly the temperature and excitation structure at the base of the jet but also dicoupling the emission line profile into the outflow and accretion components. For finding and investigating the extended emission features the higher angular resolution with NGS AO is necessary although the performance of NGS AO in J-band is lower than H- and K-band. We selected four targets in the 38 CTTSs in Edwards et al. 2006, which show blueshifted emission and absorption feature in He I 10830 line profile such as DG Tau. This observation will provide us with a good performance checking of the NGS AO in J-band of Altair, too.