The low Sr/Ba ratio on some extremely metal-poor stars
Context. It has been noted that, in classical extremely metal-poor (EMP) stars, the abundance ratio of two well-observed neutron-capture elements, Sr and Ba, is always higher than [Sr/Ba] = -0.5, which is the value of the solar r-only process; however, a handful of EMP stars have recently been found...
| Autores principales: | , , , , , |
|---|---|
| Formato: | Artículo (Article) |
| Idioma: | Inglés (English) |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | https://repositorio.uc.cl/handle/11534/101650 |