The primordial Helium abundance
| dc.creator | Luridiana, V. | |
| dc.date | 2002-09-10 | |
| dc.date.accessioned | 2026-07-07T02:05:04Z | |
| dc.date.available | 2026-07-07T02:05:04Z | |
| dc.description | The primordial abundance of 4He, Y_P, is one of the hottest themes in present-day astronomy, mostly due to its cosmological relevance. The disagreement between different determinations has been currently reduced to the 1-2 percent level, but these differences are still large enough to have deep implications for Big-Bang nucleosynthesis. It is therefore crucial to estimate precisely the uncertainties involved in the measurement of Y_P. Here, I review the methods used in the determination of Y_P and the related uncertainties. I also discuss some recent results, and emphasize the assumptions underlying the differences among them. | |
| dc.description | 8 pages, 1 figure. Moriond Latex style. To be published in the proceedings of the XXXVIIth Moriond Astrophysics Meeting "The Cosmological Model", Les Arcs, France, March 16-23, 2002 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0209177 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0209177 | |
| dc.identifier | Proceedings of the XXXVIIth Rencontres de Moriond: 'The cosmological model', eds. Y. Giraud-Héraud, C. Magneville, J. Tran Thanh Van, The Gioi Publishers (Vietnam), p. 159 (2003) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4992 | |
| dc.subject | Astrophysics | |
| dc.title | The primordial Helium abundance | |
| dc.type | text |