On the ? Bootis spectroscopic binary hypothesis
- Author(s)
- Christian Stütz, Ernst Paunzen
- Abstract
It is still a matter for some debate whether the group of ? Bootis stars has been homogeneously defined. A widely discussed working hypothesis postulates that two solar-abundant stars of an undetected spectroscopic binary system would mimic a single, metal-weak spectrum, thus preventing any reliable analysis of the group characteristics. Using the newest available stellar-atmosphere models and synthesis codes, we investigate whether the proposed spectroscopic-binary model can explain both the observed abundance patterns and the photometric metallicity indices, and what would be the percentage of undetected spectroscopic binary systems.
- Organisation(s)
- Department of Astrophysics
- Pages
- 459-460
- No. of pages
- 2
- Publication date
- 2008
- Austrian Fields of Science 2012
- 1010 Mathematics, 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/fbae1e30-475d-4c55-b191-f2080dd7bd34