A survey of T Tauri stars in the nearest star forming regions

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Our main purpose of this research is to search for T Tauri stars in the nearest star formin regions in order to provide many samples for detailed studies of protoplanetary disks and/or plant formation. So we planned to build a new wide file grism spectrograph (WFGS2) for the University of Hawaii (UH) 2.2 m telescope. Then we planned to search such T Tauri stars with WFGS2 or with other instruments, and to make follow-up detailed studies of them.In 2003 November we build up WFGS2, although some parts are not perfectly completed, and made the first light observations by mounting it on the UH 2.2m telescope. Unfortunately, due to very bad weather we could obtain only a little data by which we can confirm that the optics of WFGS2 works well following the original optics design. This suggested that WFGS2 has a potential for quick, wide-filed deep surveys.With other instruments, we have surveyed MBM12 for T Taui stars and newly found four T Tauri candidates in addition to about 10 T Tauri stars which other researchers also discovered (Ogura, Sugitani et al. 2003). In MBM12, we made millimeter observations of T Tauri stars including our newly discovered sources and detected millimeter continuum emission form circumstelar disks in three of them for the first time (Itoh, Sugitani et al. 2003a). We also made Subaru observations and detected H2 emission from a circumstellar disk of LkHa 264 (Itoh, sugitani et al. 2003b).