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...
Gorde:
| Argitaratua izan da: | Revista Mexicana de Astronomía y Astrofísica |
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| Egile Nagusiak: | , , |
| Formatua: | Artigo |
| Hizkuntza: | Inglês |
| Argitaratua: |
Universidad Nacional Autónoma de México
2001
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| Gaiak: | |
| Sarrera elektronikoa: | https://www.redalyc.org/articulo.oa?id=57101034 |
| Etiketak: |
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