Analysis of CA II emission lines in seven RS CVn systems.
Abstract
The authors report new Ca II H and K emission line fluxes and equivalent widths for seven RS CVn binary systems, observed at several orbital phases. All the stars show enhanced chromospheric actvity. With information from available spectra, an individual study for each star has been done. Double emission has been found for some systems in which perhaps the hotter component could be the more active. The authors have tested spectroscopically the model of localized active regions for the prototype RS CVn.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1986
- Bibcode:
- 1986A&A...169..219F
- Keywords:
-
- Calcium;
- Eclipsing Binary Stars;
- H Lines;
- K Lines;
- Spectrum Analysis;
- Abundance;
- Chromosphere;
- Emission Spectra;
- Stellar Activity;
- Astrophysics