Population synthesis of s-process element enhanced stars: Constraining the 13C efficiency
| dc.creator | Marinovic, A. Bonacic | |
| dc.creator | Izzard, R. G. | |
| dc.creator | Lugaro, M. | |
| dc.creator | Pols, O. R. | |
| dc.date | 2006-03-28 | |
| dc.date | 2006-05-24 | |
| dc.date.accessioned | 2026-07-07T07:01:20Z | |
| dc.date.available | 2026-07-07T07:01:20Z | |
| dc.description | We study s-process element abundance ratios in stars by carrying out stellar population synthesis, using a rapid synthetic stellar evolution code which includes an up-to-date treatment of AGB nucleosynthesis and evolution. In contrast to other studies, we find that a large spread in the 13C efficiency parameter (13C_eff) is not needed to explain the observed spread in the ratios of heavy s-process to light s-process elements ([hs/ls]), but this comes naturally from the range of different initial stellar masses and their time evolution. As a result, the 13C efficiency needed for fitting most stars in the galactic disk is constrained to 1 < 13C_eff < 2.5. In the same fashion we also study the [Pb/Ce] ratios of lead stars and find out that for low metallicities 13C_eff is approximately 0.5. | |
| dc.description | 6 pages, 3 figures, 1 .cls file (mem.cls) Proceeding of the 8th Torino Workshop in Granada, February, 2006 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0603757 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0603757 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/108240 | |
| dc.subject | Astrophysics | |
| dc.title | Population synthesis of s-process element enhanced stars: Constraining the 13C efficiency | |
| dc.type | text |