Mg and Al Yields from Low and Intermediate Mass AGB stars
| dc.creator | Karakas, A. I. | |
| dc.creator | Lattanzio, J. C. | |
| dc.date | 2003-05-01 | |
| dc.date.accessioned | 2026-07-07T02:08:22Z | |
| dc.date.available | 2026-07-07T02:08:22Z | |
| dc.description | We investigate the production of aluminium and the heavy magnesium isotopes in asymptotic giant branch models. We evolve models with a wide range in initial mass (between 1 and 6Msun), and composition (Z=0.02, 0.008, 0.004). We evolve the models from the pre-main sequence, through all intermediate stages including the core helium flash, to near the end of the thermally-pulsing AGB phase. We performed detailed nucleosynthesis calculations from which we determine for the first time, the production of the magnesium and aluminium isotopes as a function of the stellar mass and composition. From our models, we calculate stellar yields suitable for galactic chemical evolution models. The most massive AGB models produce the neutron-rich magnesium isotopes, and also produce Al-26 in substantial quantities via hot bottom burning. We note that the calculations are subject to many uncertainties, such as the modelling of the third dredge up, mass-loss and nuclear reaction rates. | |
| dc.description | 10 pages, contribued paper for the Carnegie Observatories Centennial Symposium IV: Origin and evolution of the element | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0305011 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0305011 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/6021 | |
| dc.subject | Astrophysics | |
| dc.title | Mg and Al Yields from Low and Intermediate Mass AGB stars | |
| dc.type | text |