Surface Imaging of Late-Type Contact Binaries II: Hα Emission in AE Phe and YY Eri
Abstract
We present and discuss the H = 6563 equivalent widths are close to the saturation border and that the primary components have excess Hα -emission, indicating enhanced chromospheric activity. This is compatible with both theoretical and observational suggestions that the primary is the more magnetically active component and is filled with (mostly unresolvable) dark spots and associated chromospheric plages.
- Publication:
-
Binary Stars as Critical Tools & Tests in Contemporary Astrophysics
- Pub Date:
- August 2007
- DOI:
- Bibcode:
- 2007IAUS..240..719V