Relative intensities of intercombination lines in ultraviolet spectra of T Tauri stars

Abstract

Using the accretion shock wave model (Lamzin 1998), we calculate the relative intensities of the strongest intercombination lines in the range 1200-2000 Angstrom. We make a qualitative comparison of theoretical spectra with IUE low-resolution (similar or equal to 6 Angstrom) spectra of T Tauri stars. We predict that several intercombination lines can be identified in spectroscopic observations of young stars with the Hubble Space Telescope and used for a quantitative comparison with the calculations.