Ultraviolet observations of the blue halo star : HD 93521.
Abstract
The ultraviolet spectrum of the high galactic latitude O-type star HD 93521 has been studied. Interstellar and stellar features are listed, identified from IUE high resolution spectrograms. A comparison between the observed UV flux distribution obtained with the S 2/68 satellite and that derived from theoretical models by Kurucz is given. An alternative procedure to subtract a background from the IUE 'gross' flux is presented, and the evolutionary stage of HD 93521 is briefly discussed.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 1980
- Bibcode:
- 1980A&A....90..146R
- Keywords:
-
- Line Spectra;
- O Stars;
- Stellar Spectrophotometry;
- Ultraviolet Astronomy;
- Ultraviolet Spectra;
- High Resolution;
- Iue;
- Milky Way Galaxy;
- Radiant Flux Density;
- Spectral Energy Distribution;
- Spectrograms;
- Stellar Evolution;
- Stellar Models;
- Stellar Temperature;
- Tables (Data);
- Astrophysics