D. A. Wasikowski, E. L. Gibb, T. W. Rettig (University of Notre Dame), S. D. Brittain (NOAO), J. R. Haywood (University of Notre Dame), C. Kulesa (University of Arizona)
We present medium resolution (RP~2500) spectra for several young T-Tauri stars in the near-IR region between 0.8 and 5 \mum acquired with the SpeX spectrometer at NASA's Infrared Telescope Facility. The spectra are rich in H I recombination lines. We report the fluxes of the emission lines in the Paschen and Brackett series and compare the relative line strengths with predicted theoretical values to estimate line-of-sight extinction. We explore the suppression of fluxes for lower n lines in the series due to opacity and the resulting implications upon extinction calculations.
This work was supported by the Research Experience for Undergraduates Program and NSF grant AST 02-05881.
Bulletin of the American Astronomical Society, 37 #2
© 2005. The American Astronomical Soceity.