Beryllium abundances in metal-rich stars
Abstract
In metal-rich stars as cool as the Sun, beryllium abundance determinations are difficult due to heavy line blanketing in the near-UV 3130 Å region where the accessible Be II lines reside. We can now attempt such determinations based on improved lists of atomic line identifications and gf-values in the near-UV. Here we report Be determinations for three metal-rich A, F, and G stars plus three solar-metallicity standards. All six stars have beryllium-to-hydrogen ratios at or below solar. More such determinations would provide stronger constraints on trends in Be abundance with temperature, metallicity, and age.
- Publication:
-
Light Elements in the Universe
- Pub Date:
- April 2010
- DOI:
- Bibcode:
- 2010IAUS..268..349P
- Keywords:
-
- Stars: abundances;
- individual (HD 61421;
- HD 72660;
- HD 165341;
- HD 179949;
- HD 217107)