Studies of the Quiet and Plage Component of the Active Stars in RS CVN Binary Systems
Abstract
The present proposal is aimed at continuing the study of chromospheric and transition region line intensity variations in RS CVn stars, started with IUE in 1979, in order to disclose a possible periodic character out of phase with respect to outside of eclipse sinusoidal distortion of the light curve. If this prediction will prove to be true, by subtracting the minimum from the maximum fluxes one can obtain separate spectra of the plage region and of the quiet component. Then, by reasonably estimating the plage filling factor, surface fluxes can be readily obtained and compared with the solar-type models of chromospheric active regions. We propose to compute models for the chromospheres and transition regions of the plage and quiet components separately, and to compare these models with models for plage and quiet regions on the Sun and models previously computed for Capella, HR 1090, and UX Ari. We will also model the spectra of any flare-like event observed.
- Publication:
-
IUE Proposal
- Pub Date:
- 1981
- Bibcode:
- 1981iue..prop..792L