The far-UV spectrum of the T Tauri star RU Lupi.
Abstract
The spectrum of the T Tauri star RU Lupi from 1150 to 3100 A has been observed from the IUE satellite. It is rich in emission lines, seen superimposed on a background continuum and traceable from Ly-alpha to 3100 A. The region from 2000 to 3100 A is dominated by metal line emission of the same nature as previously observed in the optical region. The resonance lines of Mg II at 2795 and 2780 A are exceedingly strong. In the region from 1150 to 2000 A the most conspicuous features are the very strong emission lines of C IV, Si IV and Si III, indicating that regions of very high temperature (50,000 to 100,000 K) exist around the star.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1979
- Bibcode:
- 1979A&A....73L...4G
- Keywords:
-
- Astronomical Spectroscopy;
- Far Ultraviolet Radiation;
- Stellar Spectra;
- T Tauri Stars;
- Ultraviolet Spectra;
- Iue;
- Line Spectra;
- Satellite Observation;
- Spaceborne Astronomy;
- Astrophysics;
- T Tauri Stars:UV Spectra