The Mg II lines at 2800 Å in the spectrum of alpha 2 Canum Venaticorum.
Abstract
Summary. Ultraviolet spectra of 2 CVn have been obtained by the Utrecht Orbiting Stellar Spectrophotometer S 59. The observations are compared with LTE-model calculations. Upper limits of the combined Mg-abundance and microturbulent velocity are ob tained. If a microturbulent velocity of 1.5 km/s is assumed, the Mg-abundance is smaller than 7.2. Key words: ultraviolet stellar spectra - peculiar stars - magnesium abundance
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- July 1973
- Bibcode:
- 1973A&A....26..149B