Cargando...
Primordial helium abundance determinations
Based on the best observations of extragalactic H ii regions of low metal-licity available in the literature we redetermine the primordial helium abundance,Yp, taking into account all the observed He i line intensities with the exceptionof those strongly a ected by underlying absorption. We derive H...
Gardado en:
| Publicado en: | Revista Mexicana de Astronomía y Astrofísica |
|---|---|
| Main Authors: | , , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
Universidad Nacional Autónoma de México
2001
|
| Assuntos: | |
| Acceso en liña: | https://www.redalyc.org/articulo.oa?id=57101034 |
| Tags: |
Engadir etiqueta
Sen Etiquetas, Sexa o primeiro en etiquetar este rexistro!
|