NEAR-INFRARED SPECTROSCOPY OF YOUNG STELLAR OBJECTS

We present spectra between 0.9 and 1.35 mum for MWC 349, LkHalpha 101, R Mon, V645 Cyg, GL 490, T Tau, and HH 1. The spectra are rich in emi ssion lines. We find evidence for many different emission regions, inc luding virtually all those previously deduced from shorter wavelength spectra. A number of objects have optically thick regions in which O I emission is excited by UV and Lybeta fluorescence. We discuss the phy sical implications of the observed lines and the role spectroscopy bet ween 0.9 and 1.35 mum can play in future investigations of the evoluti on of young stars.