Possible evidence for a change in cosmic equation of state at decoupling
| dc.creator | Gonzalo, J. A. | |
| dc.creator | Marques, M. I. | |
| dc.date | 1999-05-13 | |
| dc.date | 2000-01-19 | |
| dc.date.accessioned | 2026-07-07T02:31:35Z | |
| dc.date.available | 2026-07-07T02:31:35Z | |
| dc.description | Indirect but significative evidence (from fusion research data, and from the known 4He abundance) relevant to primordial nucleosynthesis is examined. It is shown that this evidence supports a change in cosmic equation of state at decoupling, compatible with Einstein's cosmological equations, from ROm T^4 aprox. cte (ROm=ROr) prior to decoupling (t<taf), to ROmT^3 aprox. cte after (t>taf), being taf the atom formation time. Implications at the baryon threshold time (temperature) and beyond are discussed. | |
| dc.description | 4 pages, RevTex; minor corrections | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9905161 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9905161 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14207 | |
| dc.subject | Astrophysics | |
| dc.title | Possible evidence for a change in cosmic equation of state at decoupling | |
| dc.type | text |