Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..338b&link_type=abstract
In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 338-341 (SEE N85-20961 1
Astronomy and Astrophysics
Astronomy
5
Atmospheric Models, Iue, Resonance Lines, Spectral Resolution, Stellar Winds, T Tauri Stars, Ultraviolet Spectra, Variable Stars, Dispersions, Taurus Constellation, Ultraviolet Astronomy, Ultraviolet Photography
Scientific paper
High and low-dispersion IUE spectra of the premain sequence star, RU Lupi, were obtained using both the short wave prime (SWP) and long wave redundant (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 are dominant. The transition region density is approx. 3 x 10 to the 10th power cubic cm derived from the Si III lambda1892/C III lambda1909 line ratio. The status of the atmospheric modeling of RU Lupi is discussed.
Brown Adrian
Gross Ben
Johnstone Roderick
Jordan Cathy
Kuin Paul N. M.
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