Atmospheric properties of RU Lupi derived from high- and low-resolution iue spectra

High- and low-dispersion spectra of the pre-main sequence star, RU Lupi, were obtained using both the SWP and LWR cameras. Strong p Cygni line profiles are seen in Mg II and Fe II emission lines, indicating that the lines are formed in the stellar wind of RU Lupi. An increase in transition region line widths is seen with increasing temperature, which cannot be due solely to opacity broadening, thus indicating that kinematic broadening mechanisms (e.g. flows and turbulence) are dominant. The transition region density is about 3 x 1010 derived from the Si III lambda 1892/C III lambda 1909 line ratio. The status of the authors atmospheric modeling of RU Lupi is discussed